Tomorrow, I'll learn if the ZDZ 40 is too much for my GP Pitts, at 15.1 lbs. My experience with this motor in other similar-built front ends is "no problem"....you can bet I'm gonna post all sorts of results of my test hops....can't wait!
BTW - my web site has my progress on this project, if you care to browse...
http://www.rcaerobats.net/GP_Pitts/GP_Pitts.htm