Jigs, jigs, and more jigs. 3″ plastic minumum with a chunk of crawler like basspack says or even a leech. Don’t bother with any kind of minnow, they are waaaay too expensive and not any more effective. You can bring your own worms and leeches into CA so I’d also recommend doing that. Versus buying them there.. Just make sure you have a good deal of ice if houseboating or camping.
Also, I heard that the Lac Seul area is about 2 weeks behind in water temp and fish behavior from Dave and Irene at Lac Seul floating lodges in Hudson. So bring appropriate clothing and plan for slightly more shallow water.
Have a great trip!! I leave again for CA July 16th!!