Spaceman Spiff,
Congrats on the inverted autos

They are a blast! I havn't tried continuous flipping autos but I have done them with a flip and a piro half way through the flip, and its pushing it. On a windy day you would probably be able to do it, I can get mine to do continuous rolling autos...only gotten one and a half rolls out of it but I'm sure it will do more. You have to stop for a second on each half roll just to keep the head speed up. It also depends on how heavy the blades you are using are, I'm running 140g blades and they auto well. At the end of aerobatic autos I find that comming in fast like a plane and then doing a very steep fast flare gets the head speed up to enough to keep it hanging for a bit at the end, if you don't do this you'll have to be set up very very good and there won't be any time to mess around at the bottem
Colin