1. The plastic wing thingoes do seem a little weak but seem to be holding so far. I shaped the area to the shape of the captive nut as well as possible and then liberally soaked the area with thin CA to reinforce it. The wood there is very soft balsa otherwise and would definitely have problems. After the CA cured I glued in the wing nut.

2. Covering is holding up OK so far. Has needed a little tightening but should be fine. I suggest that you trim and lock down the covering in front of the wing since it can get fuel gunk under it. The covering behind the wing has buckled a little because on my plane the wing is a very tight fit with the front and back of the saddle.

3. Some of them are used to mount the servos sideways under the wing panels. I did not realise this until after I had decided to cut the covers and mount the servos more conventionally. Other bits are for reinforcing the servo mounting tray. I used these and changed the servo arrangement to suit my pull-pull arrangement for the rudder and solid CF pushrods for the elevator. The stock rudder and elevator pushrods are useless.

4. Landings are pretty fast but I am not to sure whether that is just me being paranoid. It behaves OK when flying slowly. No flaperons on my plane. My radio is an older non-computer unit that does not support them.

Glad to help.

Richard.

P.S. Where do you fly?