Yeah I will have to come up with some way of rolling it back over. Have looked at servos and high torque MFA motors etc. I've been really impressed with Scissorhands' and Mr Mangle's roll over hoops Been reading a few bits on which shapes work and don't work, also badgered a few people about it lol.

One thing I keep thinking is that there are very few "lifters" out there now. Most of those sorts of robots are FP Flippers that are after lobbing you out of the arena, in which case no amount of invertible-ness or self righting is going to help.