Given that AFAIK, the Accentor is a clone of a Pow-Wow, any 35-up, including a Stunt Fox, should be all it "needs" (but on 57' lines, not 65', of course). We had one (Pow-Wow) for years, with an OS Max-S 35 pulling it quite well. But I tried pulling it out of a wingover a couple of feet below ground level on its last flight -- below paved ground level, that is . . there was some odd wind, and contrary gusts, so I wasn't trying anything difficult. Probably should've flown the tank out level, but just couldn't resist a mere wing-over.