Anybody used/using an older iS107 for foiling?
I'm looking to use it with a NP Glide Large. Footstrap locations are very similar to JP135, but minimum mast location is equivalent to the the 130cm mark on JP (measured from bolt holes), not sure how much difference that will make as I only have really used JP at the 125cm location. Any thoughts?
Cheers, Mort
Select to expand quoteGrantmac said..
I'm betting it's not a deep tuttle which can be an issue.
This one has a Deep Tuttle. NP foil fits in ok. Cheers
Yup, works but is between deep and medium.
Works fine if you're smaller or good at foiling.
I have the same year 2013 iSonic 117 (229 x 80), and it is great for foiling. I'm 90kg, and have used 4.0 to 5.7 so far. Mast all the way back in the track. Not sure how much difference your 10cm narrower 107 will be.
I had a deep tuttle foil box installed, as the original did not quite fit my MFC foil. I was told the original fin box was one of the strongest and highly reinforced the repairer had ever seen. Loads of carbon, glass, plywood, high density foam, etc, and was really difficult to remove. Not sure if all 2013 iSonics were built the same, but if so, you should have no worries there.
Were you sailing the JP with the NP that you mentioned or a different foil?
Just looking at the pics, not only is the mast track a bit more forward but the back straps appear to be, too - relative to the fin box. If this is the case (and not just camera perspective), both compound each other, putting more weigh forward. In addition to putting the mast base all the way back, you may need to raise the boom a touch to get more pressure back. Definitely try it without the back straps so you can move around and find your balance.
Thanks Paducah. It is more distortion, the straps are almost identically placed relative to foil box. Having said that I don't really use the rear straps in the Glide Large anyway and may remove. Used high boom last sail and definitely felt that it helped to stay more upright on board.
Obenebo, good to hear about the box. I imagine the nose will be pretty sensitive though 
LeeD, I'm neither of those
but ill give it a try in a decent breeze.
Will let you know how it goes.
Cheers, Mort
Select to expand quoteMort67 said..
Anybody used/using an older iS107 for foiling?
I'm looking to use it with a NP Glide Large. Footstrap locations are very similar to JP135, but minimum mast location is equivalent to the the 130cm mark on JP (measured from bolt holes), not sure how much difference that will make as I only have really used JP at the 125cm location. Any thoughts?
Cheers, Mort
Might not be as good with as your jp135 but it's going to get up and fly
Don't worry about the if but maybe
Just go for it and report back on your experience
One of my buds does really well with the gray 107 but prefers a bigger board for foiling breezes. That box fits a deep tuttle F4.
You can always try, but your footstraps are nowhere near the same spot. Even 4cm further forward (as they seem from the photo) is miles, I'd never change any setting on my board as much, with my footstrap being on the more conservative side..
On the other hand, you have the board, just try, just take your other board aswell ;).
Mast base position can vary as much as 6", but front wing COE must be between feet.
Make sure you have adequate nose protection -- a breach resulting in the sail's mast slamming the nose of the board will likely result in some damage.
I have both a 2014 Isonic 107 and a 130. I've only tried the 130 for foiling so far and it works really well (easier to learn to foil than my Wizard 125).
I have both padding on the sail's mast and a Surf Bent nose protector to help keep the board's nose in one piece.
Thanks for the comments.
WoH, the footstraps are nearly identically located relative to the finbox, its just distorted in the wide angle photo.
I'm thinking that I'll run the mast foot at 130cm on JP at next session and then try the iSonic with equivalent mast position (ie minimum setting in iSonic, per the last picture).
Effectively, the footstraps locations are further inboard relative to centreline, but same longitudinally, forcing a more central stance over the foil. I'm looking for gentle carving with a small sail, rather than reefing a bigger sail to windward for speed. Will let you know how it goes (and hopefully not smash the nose off the iSonic) 
Cheers, Mort
