"I was thinking of a rig where you have your main hook at the lips/head of the bait fish, and then have a limp line run towards the back of the fish, with a small hook and just pierce the tail. That way, if something hits it from the back and tries to run/rip if off, it'll have a chance at getting hooked too instead of slicing your bait in 1/2."
I tried exactly that and caught fish. But no more or less than with just one hook. Maybe others would have different results.
In my opinion there is real "trolling" at a low-medium-high speed, mostly stable but with perhaps breaks and turns, deliberately targeting specific depths by various means, set up so the fish gets hooked on the intitial hit,
and what I call "half trolling" which resembles bait fishing but moving around very slowly, ocassionally stopping, usually done flatlining with some sinker weight or even release floats, and set up so that fish will run on the hit.
I think a rear hook in a live sawbelly would be more effective in the former case more than the latter.
