I've got BB5s on my paratrooper, they only squeal (and really not that much) if I really apply them hard (and suddenly) when they're wet. If I'm gonna slow down I usually just apply em a little to get most of the water off and then use as I normally would, just to avoid some squeaking. I'm pretty happy running only disc brakes (this is one of the older ones that had front disc only originally) and would continue to use them in the future.