I think the stock landing gear is very poorly engineered. It has no way to flex backward without breaking the too thin plywood supports. It might work better if it went all the way across the fuse where it mounts.

I'm tired of fixing the landing gear everytime out, so I'm puting in 3/16" wire with about three inches of torsion into a 3/4" hardwood block spanning the width of the fuse. Maybe this will do it