on this subject I am planning a similar instalation on a sabre 38 and offer the following comments. Hall Spars advised me that a st40 is appropriate for this mast howevr it does look a bit large to me. Winch will be mounted on the starbard side and Hall recomends mounting about 3" above the deck but above or below the boom gooseneck. In this case the main halyard is carried inside the mast and exits in the center of the starbard side. One further bit of advice from Hall is that the halyard exit must be 11-12 inches vertically from any other mast penatration (either side). While I havent actually mounted the winch, the mounting plate looks like its designed to mount to one side of the mast and at a bit of an angle to the halyard lead. I am a bit concerned however with Brion,s recomendation that the line clutch should be mounted close to the halyard exit, will that mounting position cause additional friction being so close to the exit point???