RE: DLE 20cc
to add to Jezmo, the bigger prop with create some interesting torque roll effects as you increase throttle so you will probably need a throttle to aileron mix to sort that out. Even with a 91FX my Edge needs a bit of mixing assitance at WOT.
If youave ot bought the ARF yet, get the Seagull .90-1.20 size Edge. The DLE will fit in that and fly it well.
Alternaively wait for the NGH 17 and fit it too the Edge 60-90