1- I have never used a swivel, but think I should this time for the wind and current shifts I anchor in. Should that be attached to the anchor or to the shackle on the anchor... and then to the chain. What kind of swivels have other used which works best.
I can't locate it again,
but one of the expensive SS swivels sites showed their swivel attached directly to the anchor and recommended that in the verbage. The add mentioned that the swivel mainly aids in the anchor's correct orientation onto the roller during retrieval. Never used one??