This is a rich topic for me. No pun intended.
So many ways to approach chopping on the Octatrack that it’s hard to know where to suggest starting. I’d say slice a loop, place some trigs, create linear locks, then start editing those locks into something crazy but musical. Copy to new patterns and keep making changes. Introduce more loops as you go.
My personal fav right now is load loops and trigs into track one, then resample into track 2 with recorder buffers/trigs to mangle more.
Here’s something to try.
Conditional Amen Break Glitching Octatrack = Ned Rush https://youtu.be/bXUn8D9TR4g