I built one around 8 years ago, and I trashed the abs cockpit that came with it and built one out of balsa, much neater and better. I also second the two servos in the wing and on elevators. I also run a 1/4 scale Hitec servo on the rudder. Have had to replace the rudder servo once, and one of the elevator servos. Sure was thankful there were two on the elevator. I have aluminum gear and fiberglass cowl. Running a ST.75 with a Slimline muffler off of a ST.90. The .75 seems to have more power than the .90 ever had.