I've been trying out a 8:1 system where the sheet goes around a ronstan 40mm ratchamatic on a becket for the first top block giving a 180 degree wrap. The normal ratchet block on the bottom is turned off.

So far it has been great. I can keep a P-19 mainsheet sheeted in with the slightest amount of pressure, and it runs freely when you let go. Before this setup I used the cleat a lot, now I rarely need to. There are some slight sheet routing issues with my particular blocks, but overall much better than before.