Ah screw it.
Why don't I do this:
REPU: unclearanced RB flywheel, 225mm disc, 215mm SS pressure plate.
FB: clearanced RB flywheel, 225mm disc, 225mm SS pressure plate.
GLC: super light flywheel, 215mm disc, 215mm stock pressure plate (heavy 8.5 pound)
The REPU will end up with probably about the same amount of total clutch grip as a stock setup, which I've always found to be adequate. Possibly even greater than stock, actually. I won't have to buy anything.
The FB will get full 225mm stuff, and will feel heavy with the 12A, but I also wanted to learn how to do J-turns, doughnuts (donuts?) and other fun parking lot maneuvers. Then when the 20B goes in it will feel just right and actually hold the torque for a while, even after break in.
And finally the GLC will get the super light flywheel because that is all that's left. It's only compatible with 215mm clutch components but that's ok. The GLC doesn't need anything bigger.
Hmm, it might actually be possible to use a 225mm pressure plate if I use the RB long bolt kit. The flywheel lip has three small clearanced cutouts. I'll know more once I have access to it. Otherwise it will get the heavy 215mm pressure plate I've had kicking around here for a long time. Most pressure plates weigh 8 pounds. This one weighs 8.5 pounds. It's not a lot, but hauling four people and groceries makes you think twice about some things.