I used the advice from all and purchased the 194/153 6:1 combo for my H16. I really like the adjustability of the cleating angle because when the kids want to sail I can quickly move the angle up to make it easier for them to pop the cleat. 6:1 is all you need with a properly working ratchet system. I had to go down a sheet size so that it would run through the blocks quickly in a blow. I am now using 44 feet of 3/8" and it's excellent.

Mac