I use Ofna and Mugen for my trucks. I boil them first prior to installation to make them a bit more flexible so they will return to their original shape.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)
All of my JConcepts wings are awesome, and have never given me a single problem. I boiled one because I dyed it from yellow to black, but the rest (3) are just stock and installed. They are very flexible and won't break even if you twist them in half, if they don't return to their exact original position, just use your foot to press it back into position.
I have broken two wing-stays while running JConcepts wings (serious jumping, some bad landings right on the wing), but the wings didn't receive any damage at all...just the wing-stays.
The only damage my JConcepts wings have ever received are from when they get used as wheelie-bars! One of my wheelie-wheels that I mount to the back of my wings came off and I didn't notice, now part of the vertical stabilizer is ground away, heh!
-Chad › PM ME IF YOU HAVE THE BELOW: › VBS, CVDs, GM Single-Speed, OTB, Ultramaxxed, Super6, Strobe, Sprong, CNR Brake, UE Hex, DUH Towers, Predator, Blackbird, GA Blue Screws, HCR F/R Skids & Mutant