There really isn't a big mystery on the fundamental difference between the two types on shots. In general, on the THS, you're playing friction horizontally on the right (or left). On PBA/Sport, for the most part, you're playing friction vertically down the lane.
I just got back from Nationals, and it was amazing watching 80% of the bowlers trying to find friction on the right that just didn't exist, because that's the only kind of bowling they know. They'd scratch their heads at washout after washout not understanding what was happening.