Thanks for the input Dennis.  I'm just trying to relive some fond memories of yesteryear.  I had many of the Cox/Testors "toys", but they only suceeded in making me dizzy.  The Magician was a true U/C model that did what real stunt models were meant to do.  The 60/70 ft. cables and heavy "pull" of the Magician made it a pleasure to fly.  I planned to build my new Brodak Magician with the McCoy .35 and to look "old school", but with all the new information I have, I might go with a modern .25 engine since this kit is smaller and will definitely be lighter than my 1975 brickhouse model!  Mike - LVRRC