RE: Velcro to hold wings on?
For those using the peg or pin in the front former to hold the front of the wing on and then screws in the back: most use much to large a screw, usually 1/4-20's. These are much to large. On most planes, a 6-32 is more than ample. for 1/4 scale go to 8-32 nylons. Also make sure there is no gap between the wing and the point where the screw enters the fuselage. You want it a tight fit so that, if you hit on a wing tip the bolt(s) will shear easily. Having no gap aids in this shearing action. Without it, the bolt tends to bend and it takes much more force to break it if it is in tension which can cause the front pins to tear out the bulkhead they are inserted in.