If the original second land ring is any good at all, I usually just put a Bowman ring on the top groove, and run the stocker in the second groove. It's really not necessary to run two Bowman rings.

You could even leave the second ring out. You get slightly more high rpm power with only one ring, but I like to use two for a little extra sealing security and to stabilize the piston for longer ring and possibly piston life.

AV8TOR