Me and my brother sank over 100 pallets last winter, some for winter fishing and some for spring. We caught fish out of the shallow water pallets this past spring but havn't done as good in the deep. I suspect maybe the deep ones aren't slimmed up good yet. We wired the pallets up 3 together in an A frame type shape. Be advised, this is some serios work, definately a 2 man job, and takes alot of weight to sink that much wood! Unless those deep pallets really turn on, I don't care if I ever see another pallet! Good Luck.
Mark