Thanks for the info! Yet another testament to the cost-effectiveness of the s550 calipers. I've heard the the stock boss booster/master paired with the s550 calipers gives slightly more modulation than stock. I'm a big fan of the stock brake feel (with ss lines, good pads) so a similar feel is a positive in my book. One worry I have with the s550 calipers is the reports of knockback, which doesn't seem to be entirely cured by a 2pc rotor, which also could drive up the cost of the s550 option. I could go for those calipers and cheapo 1pc rotors if the knockback isn't too bad. That's hilarious and awesome that your "take-off" pads are still good. Another point for race brakes. Feels like I'm ping-ponging back and forth between these brake options.