Have considered it
I always thought it would be nice to have all sail controls come back to the cockpit. But it's a big expendityure in money and I wonder about all the added friction in the lines. Getting the main up withy none but the masthead sheave in the way is tough enough. When you add in a turning block at the base of the mast, a cheeck block to give a fair lead to the winch, it gets to be a lot more. It becomes even more so for the reefing lines, which have the cringles in the sail, sheave at the end of the boom, clutch at the gooseneck, then add a turning block and cheeck block and it gets to be a bit much. Instead what I did was install rope clutches on the mast above the mast-mounted winches for the main and jib halyards. Once set, the winches are unloaded and can then be used for the reefing lines. I don't mind going out on deck.