Originally Posted by
vasracer
The problem with having the cassette loose is 1. the lockring can come off unexpectedly and 2. the cogs can shift slightly and gouge the hub body. These two thing might or might not happen its all a matter of hub body material and cassette combination. But having the lockring loose is never a good idea.
My lockring isn't loose. But it's doesn't have to be on as tight as you can get on a vise. Once it is threaded on and makes contact with the cassette, I don't find you need to tighten it past about a 1/8 to 1/4 turn. If the cassette rattles or is loose, then certainly it needs to be tightened further. But if the cassette isn't moving, I find you don't need to over do it.