TT2, I just got home from flying my GSP Katana. I flew about five flights today (about 80 flights total) and was taking the plane apart cleaning up when I remembered reading your post in reference to the grain on the webbing running the wrong direction. Guess what, its running length wise and both wings are cracked down the center of the webbing. Thanks for bringing that to my attention it probably saved me from folding the wings. Yes, I do a lot of high G manuvers and my plane weighs a lot more than yours but you're right that webbing needs to be going the other direction.

Your about installing wing bolts sounds great. I have no trouble getting at the springs with my enlarged hatch. I think the stock bolts and are fine, I don't think there is a whole lot of force pulling the wings away fuse. One thing I do recommend if you are using the bolts is to install larger washers. I use the small stock washers on top of some big ones (about the same diameter as a quarter but still has the small hole) I got from Home Depot. The larger washers have a lot more holding surface.