So, in the meantime, of building a heavy, I plan on building a cheap-ish feather too, just to keep myself building, and to get back into this. I've already sketchup'd a design (Since I can't find my copy of Solidworks) and it looks alright ish, I already have the necessary materials to build the outer frame, but no way of controlling it. Has there been any new ESCS for feathers, beyond the TZ85a's and such?