I'd say it depends on the venue you chose to fish during winter and weather conditions that you are fishing in.
High stocked venue then I'd fish lead clips to semi tight lines and fish for liners if I can't find them. 12mm - 16mm baits and I wouldn't be afraid to give them some bait.
On my syndicate water I used to go the opposite regarding bait size, 18mm - 24mm baits. The bigger baits for pre-baiting to hopefully stop the tufties scoffing them. I would have also been baiting a swim or 2 for a good few months by now with particle and boilie. Plumbing the spots every now and then will tell you if the fish are visiting the spot.