[silkyslim]

a free showdown raise is good when:
1) there is a chance you have the best hand
2)you have some outs to improve to the best hand (therefore if they call you can fire on the river and win 3 bets instead of 2, but if you miss you still only pay 2 bets for the showdown: same as calling down)
3)FOLD EQUITY, villass might fold a lowpair or a hand that has 6 outs against you.