Man this kind of sucks. I'm kicking myself in the arss for not researching them more. I guess I ASSumed they were as good as my other robarts that I've never had an issue with. I'm pretty bummed. I don't have $300 to spend again on retracts, yet I don't want to rip the wings apart on a plane I just spent all this time building. I don't have the luxury to fly on pavement, and the grass is REAL thick at the field so I really need a beefy setup. Sorry, I'm just frustrated.so close to the maiden, yet so far. The sierras do look nice though. I'll have to find a way to get them. Thanks