So, I think maybe I've been using TOO much edge-picking...?

I’ve been experimenting with the trigger style grip as opposed to the angle pad one I had been using.
I get more edge picking by default with that grip and it seems the pick is more stable while tracking. The pick point tended to change a bit with the grip I had been using.

So at the moment I’m probably around 45 degrees by default and it stays more or less the same when tracking.