Just looking for some info on how the Sync compares to the HRR. Type of bowler they are best suited to, lane conditions, and shot shape. I'm reading lots of good things about the Sync. I already have a HRR that is still waiting to be drilled, but could possibly trade it for a Sync. I'm primarily a stroker with lower revs, 14mph at the pins, low tilt and medium or more rotation.