On my old W968, I've tried many rubbers on my BH - H3 37 provincial, D09C and D05. On my FH I always love the tacky old TG2 41 degree.
Recently I flipped and play TG2 on BH for fun. My block became so much more consistent. So I order a few sheets of H3 41 unboosted and slapped one on my BH...