Yes, the TI version is mostly just shorter. I'd take it off the front where it comes to a point and just readjust the outside cut so it's about the same width at the new front. We changed to Coolaroo brand shade cloth (an Australian product) a couple of years ago, available at Home Depot and Amazon. All the others we use to buy actually were manufactured by one company that sent it's production to China and the quality dropped to unusable. The major problem is it shouldn't stretch too much. Needs to hold it's form. The Coolaroo stretches up to 15%, which is great (sometimes seems almost too little stretch, when installing an AI Sprayskirt kit)
I designed my Sprayskirts to stretch tightly. Tight enough to bounce a tennis ball off of it. I found when it is this tight, at the angles the kit mounts on the hull, that it stops the most spray and cause a small nose lift at speed. You can actually plane off the Sprayskirt in smaller chop at AI/TI sailing speed, giving some extra time to, adjust the trim of the boat (like when riding on a haka), reefing in the sail or just riding out frequent short gusts.
And for when you might want the "mini-Sprayskirt" for rougher conditions while fishing or sailing long distances, a wire-tie on each side near the front hatch temporarily converts it. Just cut back off to go back to the full Sprayskirt when done. For normal sailing, where you can adjust your angle to the waves, by cutting waves at about 45 degree both up and down the waves, the full Sprayskirt works great.
Good luck with your project. Let us know how it works out for you.
- - - - - Hobie Island Sailing since 2006 - - - - - 2011 & 2015 Hobie AIs and a 2012 TI