Hmmm, I've never had a kinking problem or static like issues with my plastic reels. with the super long 36 exp. 35mm or my 120 rolls. My only complaint is loading the 36 exp. 35mm rolls. They always get stuck and I have to start over...in the dark. Hate that.
As for agressive agitation, I've found certain songs on my ipod work great for inverting to the beat Others are too fast. I need music!