The faster the putting surface, the more putts will break on any given hole on any given slope. Because golfers must roll putts slower on faster greens (to keep them from going too far), putts take longer to get to the hole. This gives gravity more time to pull balls downhill and make them break more. The opposite is also true: the slower the greens (due to wetness or longer grass), the less putts will break. Always remember: when the greens are fast, play more break. When they are slow, play less break.