RE: edge 540t or extra330s?
[/quote]
I don't think I have ever tried a regular spin with mine to see how cleanly or uncleanly it breaks!
[/quote]
If you keep the wings level and have it in high rates, you can just keeping adding in up elevator to maintain altitude. At a certain point, forward airspeed stops and it will just elevator downward without droping a wing[X(]
What most guys find they have to do is lead in with a very small amount of of rudder (very, very small amount) and that can help. It is also important not to input too much elevator too quickly or you end up with stalled plane that is falling down in a 3D elevator.