Cotman,

Wrinkles...I simply ironed mine out with an iron. They smoothed right out without issue.

I bought the AK P-51 which is the same as the Raidentech and several others, all Chinese clones of Hanger 9.

Chief differences are lack of accurate documention,(manual sucks), inferior retracts, (replace with Great Planes) and cheap hardware.

The woods used are rough-cut but covering is nice. Beware the firewall. NO blindnuts preinstalled and NO way of knowing where to mount the engine. You have to line the cowling up measure, measure, measure and then drill your bolt holes. Here's how mine ended up.

Keep everything as light as possible and make sure your CG is right on. The manual DOES show this one!

Good luck!

Point Magu
Cumberland, MD