Hi Wavers -
Harken has come up with a new set of blocks for the Wave - a 40mm carbo fiddle at the bottom, and a 40mm carbo double at the top. This ball-bearing system ratchets, is very light weight and is better quality than the stock Ronstan All Purpose blocks that come with the newer Waves. I've sailed with it a couple of times now and really like it. Drop Harken a note if you want a set - the ratcheting double is new and doesn't appear in the catalog.