String unwinding when I loop?

Am I doing something wrong? When I’m doing loops with my loop 900, my string is like unwinding with each loop (on around my 50th loop or so, my yoyo actually flew off the string o.O). I dunno if it matters, but I’m using the 100% poly string sold here.

the yoyo flips when you loop. this causes the string to untwist after a while. ever noticed string tention to high when you are playing 1a (assuming you are a righty, it is the other way for lefties) and if you play 1a with your left, it will unwind as well

That happens when you loop. The string loosens and then you have to use tricks like sidewinder to adjust it.

This:

Okay, thanks all. Just wanted to make sure I wasn’t doing something wrong. lol