Cannot comment on the Sync, but I have been throwing the Marvel S on a summer league THS. Struggled with RG Berserk the first 2 games (bowl 4 games, moving lanes after the 2nd game, on a 3 person team) so switched to the Marvel S for the last 2 games. Went 221 (blew a single pin spare) and 264 (open in the 4th frame and left the 4 pin in the 12th). Motion hole, surface adjustment, 15 1/2 - 16 MPH. Picked it up at a good price and like where it fits into the rest of my equipment.
As an aside, had the Storm rep there last night and was able to demo the new stuff. Thought the HR Solid was good, but really liked the motion of the Optimus. Look forward to getting the ball.