Yeah I ride the girl in our crews gix 1k all the time. I can still wheelie it for ever but definitely feel a lot more comfortable on the 6. I think the reason is because of all the power of the litre bikes. On the 6's we have to stay stuck in the balance point and there isn't as much of a chance to loop it. With the litre bikes the throttle is so much more twitchy and it harder to keep smooth.