thinkng of buying a new sail probably a pryde or a gaastra i am currently on a pryde 5.3 zone a couple of year old and it is awesome but is breaking so will need a new sail 
soon
might depend what mast you have.
if you have a np mast already then np might be the better option.
Back in the mid to late 80s Gaastra and Neil Pryde were the main brands. It was Robby Naish vs the NP guys and girls. Both brands are kewl so get whatever your mast suits. Or perhaps choose something completely different.
i don't think gaastra will rig well on a gun mast. they are constant curve masts leaning towards flex top which unfortunately is not gaastra orientated.
the neil pryde would rig on a gun mast though. i've sailed a couple of the pryde wave sails and they are very comfortable easy handling sails.
edit* you will find though the gun mast is a little stiff for the pryde but only just. should still work.
you could also look at simmer sails, gun sails (not sure if they are available in oz), plus loft and KA, () edit* which will suit it better.
the only sail "guaranteed" to work properly is a gun sail though.
my pick, (and yes everyone here knows i'm a KA fanboy), would be the KA kaos. for your age/size/weight it would work very well and they don't cost a mint.
i have a 2008 4.7m kaos that i reckon would get you going as soon as your current sail and a brand new 2011 5.3m kaos. you are more than welcome to rig them up for the day on your kit and try them out. can take the voodoo for a spin at the same time. 
thanks gestalt will have to catch up at vp one day oh and my gun sails mast is a 430 i also have a arrows 370 75% carbon i rig that on my 4.0
hmm, that's a problem, most sails in the range you are talking require a 400 mast.
if you get something with an adjustable head you might be ok.
Hey Switch,
if you want another option for 5.2, I just bought a loft 5.2 wave, it will run on a 430 SDM or RdM (I have NP 430 SDM). from Windsurfing Sales.
It only came in this week so haven't tried it.
Loft Lip Wave 5.2 was just over $500, cheaper than other NP I looked at.
Has adjustable head for diff mast lengths.
Contact Bud at http://www.windsurfingsales.com.au/products/sails/2011loftlipwave.php
just an option.
yeah just checked it out but it is the same price as a 2011 pryde fusion 5.5 the pryde is just a bit over $600 and the loft is the same price and i really like the pryde sails and it is made to rig on a 430 will have to save up to buy one
that will take exactly til november damn
yep november is my birthday lol after november i will be 14 so will aply for a job and then buy stuff quicker
500 kg?
125lt is written on the board but don't go there 
i forgot about another sail brand that should fit, maybe... hot sails maui,
ok i think i'll just stick with the fusion it is just what i want a cross over sail plus i used a 5.5 fusion at the demo and was as light as my 4.0 naish
they also have gaastra close to gun out of interest.
i rig my neil pryde 5.8m rs6 on the bottom half of a 490 arrows 100% with 23 cm's cutoff, and the top half of a 430 tushingham 100%
the join was a little loose which i fixed with some tape.
total length is 437, it works great,alot of this certain type of mast for sail is cobblers.
for larger sails 6m and above a lighter mast does make a difference.
two rips.
