The most reliable shop, at this time of year, is the one at 5 points. A little out of the way but a lot of shortcuts to get back to Mahaney or campground launch. Go early. They'll be open when you get there. Great minnow count and all the latest jigs, spoons, and cranks that are working right now. Also the coffee and samiches are top notch too.
They've been my baitshop for at least 15 years. Always some really nice women working there too.