I have a Sky Fly that is basically worthless... the control surfaces wont work properly anymore.... either the fishing string is stretched out or the servos dont have any more balls left to pull the surfaces.

I would like to retro the plane with some REAL servos. Is there a way to hack in real servos to plug into the circuit board? I would hate to trash the rx, esc, tx just because the servos and control horns suck dog.

DJ88, if your stock servo's are on a circuit board then they are controled by a pot and it's not worth the trouble to try to hack it unless you have new servo's that are the same as the stock ones, in which case you can just solder them, however this is tricky and easy to mess up. converting the string controled planes can be done but you need all new components to do it, and it takes some work. There are a couple threads about converting aerobird and firebird that might help you