i don't know

So far I have been able to make Zero-g-rolls and barrel-rolls. I haven't tried loops yet. But the rolls are made like this..

Start 2 Middle 4 End
0 Angle node. +90 Angle node. +180 Angle node. -90 Angle node. 0 Angle node.

For the other direction, change the + to -

And for a Zero-g-roll, add height to 2 Middle 4 so its like this..

2 Middle 4
+100 Height. +50 Height. -150 Height.

And people are saying You can make a loop by having the top/middle node(or nodes) set with a angle of 180.

Loops that go to the LEFT (<--) have -180 Angles. While RIGHT (-->) sided ones have +180 Angles.

thanks

set nodes to 180 degrees
https://www.youtube.com/watch?v=DuIrTWOk5eo

if you go to this video and click on my name under video you can see all the diferent loops and tricks i have tried loops spirals junps flips spiral jumps inside loops outside loops upsidedown jumps thru inside loops forward flips backward flips and so on take a peek