I never had much luck on Cadillac, but Mitchell has been pretty productive for me. Ive got crappie and gills on sweedish pimples, rapalas and halis, tiped with wax worms or mousies. Your best shot is fishing for northerns using tip ups with "pike minnows" about three foot down. The walleye fishing used to be great, but is way down right now, (in my experince). I cant tell you what the ice will be like at Christmas time, it will be real "iffy".