I just had another idea on sandbag discincentivizing. It’s a variation on the “let people choose their division” concept that reduces the advantage of doing really well during qualifying going into rounds 6-10. Since many B players do want to play A if they get in, but some (based on the chat here, well less than half) won’t, your concern was that a “B” who scored well into A-level would have too much of an edge over the other B’s. Rather than use their raw score, how about using a capped score? If you “choose” B and do well, you get to take your good score, but only up to, say, 5 points above the cut line. So for this year, a “B” chooser would have been limited to 38.5 points starting round 6. That’s a maximum of 1 point per remaining round margin over the field. An edge, yes, but (a) you earned it and (b) it’s far from a safe margin. Alternately, you could use 5 points over the median score for the B’s, in this case 32, for a cap of 37.
Not sure how effective it would be; what do you think?