Sorry for the crappy sketch but a photograph can't show the hairline crack that is at the junction between the fin and the tuttle box. The fin is a Select Viper Speed and the hairline crack seems to be the joint between the two pieces(fin and tuttle moulding)
If you put some pressure on the side of fin it makes a very slight creaking noise -there doesn't appear to be damaged anywhere else. It's never hit anything and am wondering if I'm taking a chance sailing with it.
I've seen "Select" tuttle box fins where the fin just dropped out of the head.
I always dowel mine with a SS pin
it will probaby fall out...
Fill the crack with superglue
( disclaimer ) Fin may or may not actually fall out , superglue is not a recognized repair product and shouldnt be used on your fin base. 
See this post...if it goes, you're not going to enjoy it!
www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=46886
(not a crappy sketch at all)
Select Fins can fall out of their bases.
www.seabreeze.com.au/forums/topic.asp?TOPIC_ID=45552
Does it have brass inserts for the bolt threads? In theory they should hold it in place.
You could try removing them (if they're there) try pulling fin out of the base, and sticking it back in with 24hr areldite or some other epoxy glue.
Don't sail too far from shore, was sailing in Darwin when I heard a crack. Came back to shore and checked everything to see if it was OK ( so I thought ). All looked cool so went back out again. I was way out and just about to gybe and the fin snapped clean off. Had a good hour getting blown back in and got dragged across a reef in the meantime cutting my feet that bad that I had to cancel my squash lesson that night. I had never worried about crocs in Darwin harbour until that day. Sail at your peril with a cracked fin.
It may or may not come out of the base i had this happen to some of my selects.
I never had one come out though but i have seen my mates come out.
he just stuck it back in with epoxy seem to work.
I dont use selects anymore so its not a prob for me now.
Once all the new fin-ness rubs of you often get a line seperating the two and will see salt crystals there once fin has dried. To test knock the brass inserts out and see if you can seperate fin from base, at the front of the fin the top of the head locks half around the brass insert.
What happened with mine (which vando saw) was it separated but also cracked the bit which locked on the insert. I epoxied it back in place but the epoxy doesn't bond all that well to the plastic head material, you need to dowel it similar to what oldie has done but I'd probably only use 2 dowels and put them a bit further in the head as you might find a bit too much point load there and it may crack the side of the head.
The worst bit about it was I lost a very nice custom select which I loved, also lost a really nice Fins fin a few years ago which had a similar setup to the selects.
Think if it was mine, I'd remove the inserts and rebox it with epoxy, didn't realise the head was plastic.
But Le Sam has given me a nice head mould, only worth making if you have a few fins to do.
In case you do go out with it and it does fall off, one for the box of tricks is wrap your harness round the back of the board through the back straps.
The extra drag at the back helps keep the board point where you are going and you can limp in. Got me home once all be it fairly downwind.
Anyone else got any better finless, get you home sailing techniques?
Nothing wrong with select sausage, they just dont take being run aground very well. Select are a very generic fin, as in they aren't that quirky and have good average perfocmance in most boards.
Fin selection is very personal though, vando doesn't like meanlines- i do in f2's. I didnt like the C3 when we swapped gear. Match fin to board to sailing style rather than write off a type of fin
but you wouldnt understand that
.
Never proclaimed to be a good sailor mate. Though do I cash in the 10 more years of experience you have on me now or what?
So you bag me for disagreeing with you about 1 type of fin, what about Gestie who doesn't like Select but he hasn't even busted 30knots? If I was using meanlines for speed other than general slalom sailing you know I would take the effort to remove the tool marks from them which potentially creates the problem at high speed. Meanlines do suit F2's (and probably T1's) better than Selects do, but then try the opposite in a fanatic. I don't think the C3's are a bad fin, I just didn't like that combo on that day but as I said to you at the time tuning could be everything. When I get the new board I will definitely grab one of your c3's to try... maybe i'll even break 40knots
I thought i'd bring Gestie into it, soft target 
Must be because pete doesnt sell them. Seriously J bring a constructive argument into a gun battle please.
yeah and pete didn't sell mfc either when i bought all of mine.
he does now though.
why i don't like select fins,
a. cause they are slow
b. cause they are not g10
c. cause they spin out
d. cause they whistle
e. cause they crack
f. cause i listen to what the guys have to say that can do 40 knots.
i tried tectonics for a while also. i didn't like them either cause they spinout at low speed. a problem i don't have with my mfc.
then c3 came along.... i am gagging to try them out.
as for meanline. i don't know anyone that liked them. except you maybe.
as for soft targets.
i do all of my speed sailing in under 20 knots. 
i am still waiting for you to beat my formula speeds.
p.s. listen to vando....
Wanna sling me your exact formula setup then since you weren't happy with 29knots on a metre wide board? 18 knots is heaps to get 30 knots of boardspeed with, you should have proven yourself many times over.
Re: selects
a. A stock 31cm Select got the best peak speed at your event 2 years running... slow? If they were slow they wouldn't sell any.
b. I agree I prefer G10 also, actually preferably carbon G10 so you can use slightly narrower foils for less flex. But if you don't run aground and treat your gear properly no need to worry about it not being G10. Composite foils can place everything where it is supposed to be, G10 cannot do that it relies on thickness for bend/twist. It doesnt matter if something is built to last if it performs like s***.
c. Actually I find Selects lock in better than most other fins I have ever used. Be careful which fin you pick though, select do have some stupid shapes such as the Viper speed.
d. Alot of fins whistle out of the mould, I agree they shouldn't have put looks with that black stripe around the edge of the fin ahead of function.
e. I've never seen them crack aside from the point of this thread. Not too many slalom fins are priced the same as select though.
f. I can't do 40knots ay... it will be sweet
You like the MFC, I can say you probably won't like the C3. The MFC i had was alright, a bit limited in top end but as you've said to me they are supposed to have improved that this year (got to love marketing ay).
Meanlines, actually not many disliked them more than me initially- just ask simon or pierre. I swallowed my thoughts and tried them to find something that suited the F2 and they where the solution.
If money wasn't a problem I would be trying the Vector fins and Tectonics but Select is my bench mark.
What I am saying is claiming one of the top 5 fin brands in the world is s*** is wrong- fins suit certain boards, sails and styles. Vando uses a style that loads up the fin a bit, nothing wrong with that but there will be certain fins that wont suit his style.
If the Aussie dollar ever lifts its game, I'm getting one of these www.mauiultrafins.com/
JP rides them :D
mk,
putting a 50cm fin in a formula board and claiming quick speeds is like hopping on a jetski and claiming 50 knots.
let's see you do 29 knots with a 70cm fin.
as far as my setup goes, what's that got to do with it?
edit***, as far as 18 knots being plenty of wind to get 30 knots on.
just look at the formula records. guys like aus120 etc are getting 33-34 max in 25+ knots.
try a 70cm fin and do 27-28 like i was. i know you can, it's just you haven't as yet.
so that less is best theory ain't working in qld for you then.?
it's ok ducati. mk and myself have are good friends and have known each other a long time now and sail together lots. he not so bad.....
it's just every 28 days he gets a little moody...
i'm moody all the time, i think it's a product of sleep deprivation 
Gestie i'm pretty happy with the decision to reduce the amount of kit & i'll still sail more than ya
Sorry Ducati, sausages crack was fixed in the 1st few posts though.
