Conroys in Watervliet always has some good size suckers in his tank. He can order them too but it's getting a little late for that I would think. Fish 307 on Rte 9 In Lake Geo also has suckers but again, you have to look for the bigger ones. There's a bait shop in Schroon Lake but the name escapes me. They will be busy this weekend with the Derby on the lake but I would bet they too would have some suckers in stock...just not sure if they'd have the jumbo's you are looking for.