Sorry to butt in here, but should I be doing this on my boat? My problem with screwing with the rotation on my boat is that is is yet another thing for us to mess with and then forget when we gybe (before I got the spin, we tried to remember to rotate the mast on the downwind legs but forgot to undo it it before gybing half the time thus, I believe, caused my spreaders to become askew on the diamond wires). I guess my point is that at a point I feel like I need a written check list before gybing or tacking.