You're mostly talking about the hatchery fish anyway, so here's one I stumbled on... Doing the float-up-from-a-sinker method, I got lots of hits when I just started to reel in to check things. (Flat bait means you had a bite, round bait still untouched.) So, one time, when I was in a rowboat, I decided to do a slow troll with it. I mean... S....L.....O....W......... So slow that the bait floated slightly above the weight in the water column. So slow that even if the bait wanted to spin when I reeled it in it wouldn't spin when I trolled it.
Was in an I82 pond with lots of competition, and we LOADED UP. Way faster than anybody else was catching them.