I went with the 8oz I didn't want the lightest and we don't get enough snow to warrant the heaviest. I absolutely love the cover. I can put it on in less than 5min by myself once you gt the hang of it. I am going to get mine adjusted and slits cut in mine so I can run my dock lines thru them so I can leavin it on when in the water. The guys at ttops covers are great to work with. I have no complaints at all.