I was one of the few that had a wing problem and in retrospect I attribute my wing problem with weight. I've tried this plane twice wth gas (zenoah & homelite). The 202 flew great with the Zg23 and no changes to the firewall but the wing snapped on flight #7. That plane weighed in @ 13-3/4 lb. Great Planes replaced the kit for me @no $. The second one I put a Homelite conversion on, thought it would be lighter but came out 14-1/4 lbs. On the maiden flight it flew like crap (amazing what differance 1/2 lb makes) and on landing the gear peeled out (not a rough landing), the glue (looks like hot melt) just peeled away from the wood and the gear rolled under and through the wing (again I blame weight). So back on the bench it goes, good news, my brand new ST 2300 just arrived yesterday (thanx Phil) and I'm starting to get excited about this plane again. If you search on the other popular posting board you'll find a ton of posts on this plane and several reguarding thrust changes .