Hi BOAC, maybe baulked landing was a bad term, but I don't consider it an option to go around after T/R's are deployed. Having been based at MSP and ORD, I can assure you that I never depended on the T/R's to play a major roll in a successful landing on ice and snow.
How do you estimate how much water is on the runway, in the world that many of us operate in, you have no idea, and the aircraft will not slow down while hydroplaning, T/R's for me simply help reduce brake wear.