John- I've been wanting to install the Harken blocks since first reading this thread but didn't get around to pulling the trigger until now. Money well spent, they reduced the friction quite a bit and the genoa is much easier to furl now. I already had a swivel block mounted at the bow and a ratcheting block at the cockpit but I had the line running through welded eyes at the base of the stanchions and there must have been a lot of friction. I'll probably still need the winch in high winds to furl it but it seems to be a lot easier so far up to 20 knots.
SV Laurie Anne
1988 Brewer 40 Pilothouse