The 60/40 notation seems silly and misleading. Then again so are ported barrels and Browning loves those. Imo the CX line of guns might be better designated low rib, mid rib high rib. I shoot a CX with adj comb for SC and skeet, shoots about 4" high at 13yds. I like it that way. My trap gun set up is very similar. How the beads stack up I'm not even sure, I'd have to go mount the gun to tell you. When I'm shooting I try to not look at the beads, creates bad habits.
