Hi Nick,
Yeh, we have a zero show rule, it really works both ways, a hand is only live when tabled when the dealer requests "any takers" or "any showers" or for example two players go all-in, they must wait for the pot to be sorted though, before tabling, it really works better than allowing players to expose their hand and prevents so many issues, they know if they show before allowed to their hand is dead, and they lose anything they have bet into the pot up until that point, males cash games much faster, smoother and harder to angle in.
Regards
Stuart