Ditto, fished Haliburton lakers for a lot of years when my dad had a place there. Hands down the most effective rig off a rigger was a large Luhr Jensen " Dave Davis " gang troll with meat out the back. Get a baiting needle and a few dace or chubs, about 5 or 6 inchers, take 2 foot or so of 15 or 20 pound leader material with a good sized treble on the end, insert the needle just forward of the baits tail and out the mouth, draw the line so the hook is about flush with the tip of the tail, then the line out the mouth go down from the top of the mouth and out the bottom keeping the mouth closed, now adust so there is a slight bend in the body and when trolled will have a rolling action, tie to the back of the troll with a good swivel. We always had better luck on suspended fish just under the thermocline rather than the ones hanging out near bottom.