I flew a 35% vonextra 260, da100 for one year then sold it - now fly 35% comparf extra. the vonextra was 5lb lighter but was unpredictable for slow 3d flying, I tried everything different setups, etc. but in certain situations/angles of attack it would snap or squirt off line unexpectedly - my comparf is heavy but predictable. hovering, torque rolls, rolling harriers are very easy. in most cases you can make a wrong input and save it no problem. both planes fly a great pattern.