WPA rules:
WPA rules:
Right you are, Cal. Here is one of the sections covering that circumstance in the new WPA rules:
8.4 Driven to a Rail
A ball is said to be driven to a rail if it is not touching that rail and then touches that rail. A ball touching at the start of a shot (said to be “frozen” to the rail) is not considered driven to that rail unless it leaves the rail and returns. A ball that is pocketed or driven off the table is also considered to have been driven to a rail. A ball is assumed not to be frozen to any rail unless it is declared frozen by the referee, the shooter, or the opponent.
After contact with a rail-frozen ball, the cueball can contact any rail to avoid a foul.
Been playing any one-hole lately, Cal?
Doc