I have a Sportfish 1850 and do a lot of drift fishing. The boat has a large amount of freeboard and a 15 mph wind on a big lake will make you start to believe that you have a sail up. I started with a Cabelas Large drift sock and found out that on Winnie or Mille Lacs, it only changed the drift attitude but I was still flying. I have a Driftcontrol large (60″) amidships on windy days and when its really blowing and they’re biting I put the big one on the bow eye and the Cabelas one on a transom eye. Don’t underestimate how big of sock you need – get one two sizes bigger than what you think you need.