I had guys in the boat last year that live baited w/out circle hooks until we got somewhat of a pattern going. Just make sure you set the hook once you get hit. For all of the fish we caught during the two years we fished ML, I think we only mortally injured two or three both years combined. Too many for sure, but out of 150-200 fish a pretty good percentage.
we had good luck with crank baits. Jointed worked very well. Hot days we would work the shaded side of the island. Islands with sheer rock wall shore lines were the best.
I have been up there the past 2 years and the best bait I have found is a K-tail on a jig. Just casting and swimming it back, catch Smallies, Northern and Walleye doing this. Find points, any trees that have fallen in or big boulder groups and you should be on fish. Good Luck that is a Beautiful place. Are you camping or staying at a resort??