Rory and team are incredible. If you haven't used Coleman before, I can't say enough about their service.
PT: I have read and heard about the anti-knockback springs too. I should research this further, but it is clear to me that the issue is the flexure, and I really want to solve the issue rather than masking it with a bandaid. If it flexes, it probably isn't good, 'cause at some time it could yield, and I'd have to think that something like that wouldn't be good.
Ahhh, the joys of hot-rodding. Fix one issue (in my case, front brake capacity, I switched from the flaoting PBR twin piston, 13 x 1.1" rotor deal to a full Alcon six pot, fixed caliper, and big ole 13 x 1.25" rotors, and I still don't trust my brakes!!), and create another. We're a sick bunch I tell you.
M