RE: AMR TRAINER 20
Nope, the great thing about this hobby is you can have it your way! I've been building R/C planes for ~20 years and model planes for ~50 years, it's all about what works for you. All I'm saying is I've never had a nylon wing bolt fail in flight. FYI, I did use smaller steel bolts in my 19 lb OV-10 Bronco with some blue Loctite, just to be safe.