While digitals aren't a must, you really need to put some good servos in there. I'm running a couple of 9011's on the elevator and a 4131 on the rudder and 531's on the ailerons with a 6 volt pack. I'm still tuning right now, but when the battery get too far back to be conveinient, I'll start replacing the rear servos with overkill stuff that I can transfer to the bigger boys (8411 and so on). If you have the TH on hand then I don't see why it wouldn't work. If you're buying, then I would highly recommend a YS. I had a few troubles with mine in the beginning, but it was definitely worth the extra trouble I went through to get things right (machining garbage in the carb and regulator). Haven't touched the needle since the maiden (three weeks ago) with instant transition and gobs of power.