Top guide, pretty much what I do now, except if there's a scuff on it already, I'll just leave it on, and try my best to round the edges. Tip is to use a touch of linseed oil and apply it down the edges before rolling or knocking with a scuff on. Fibreglass tape also helps prevent the scuff from tearing!
Find that my LV is amazing and does cut down time quite noticeably, but I will probably only use it for about 5-10 minutes at a time, simply because the weight of it can hurt my wrist. I kind of wish I went for a 750g instead of a 1kg one, as I am used to using shorter handled mallets!