I have heard which drums can be sandblasted to restore the grip. Try
a rigger or Ballinger who is experienced in machine work on yacht
metal.
:: Does anyone have experience with re-doing the existing :: drums on the winches. I have two speed lemar jib winches :: that are good but the drums have become worn and slick. :: Seems to ahppen after time on all winches. :: :: Must be someone that can re-do the outside drum.