I have had no trouble with Curare inverted, other than the usual `up is down' thing, but then I trim my pattern models to fly `S&L' at something less than full throttle speed. This way I have to hold just a little down pressure for inverted level flight, which reminds me fairly clearly which way to push for `up'. Other than that it has no weird things happening, but I fly mode 1 so aerobatics is probably easier than for the usual U.S. mode. Both Curare and Atlas are very neutral flying airplanes, Atlas is a little bigger and slower than Curare, and may be easier to fly accurately in a pattern situation, I find Curare needs to be flown very deliberately in order to get the best from it, but then that could just as easily be me...
Evan, W.B. #12.