I have built the Heritage RC Stuka, and it was a wonderful kit. I've been contemplating their Hellcat for some time. Only one problem: as they state in their ad, the wing is 'literally designed around the Robart rotating retracts'. I have seen some of my flying pals nearly suicidal over these things. One guy had them on a TopFlite F4U and finally converted them to fixed mode with epoxy, and still had trouble with them. I don't mean to slam Robart...they are a great company with an outstanding product offering...but I don't want to spend the time required to build a warbird and then have to fly it with fixed gear. Has anybody had experience with "60-size" rotating retracts, either good or bad? Any recommendations?