RE: Filling in a 4*60
I flew my 4 star 60 all sumer (over 40 flights) with a super tiger 75. Plane has Hitec 475 on all control surfaces. Unlimited vertical and will nife edge all day long with a small input from the ruder. You do not need digitals, save your money and get the supert tiger 75 or 90.
I plan to use my tower 75 next season.