Been arguing with some of my favorite folks over in the classic section on this - What will make you safest on the street or fastest on the track is proper f/r balance, usually referred to as bias. I've learned (a few times the hard way :-) ) to believe whatever Dre says, but I don't know what the final bias is on his setup. With ad22vf's, stock rears, el cheapo rotors and Bobcats, the stock mc resulted in too much front bias - the rears (duh, of course) were helping even less than with the itsy bitsy stock fronts. There are three solutions: 1. increase the swept area of the rears (e.g., maxima conversion). Unknown in terms of proper bias. 2. Install adjustable bias valving. Ideal; all you need to do is go out to the track (or an empty parking lot) and adjust for maximum braking (without having the rear end come around to say hi). BUT you have to cut into the system. 3. Dig up a new (yes, new, can't be had for sure as rebuild as the rebuilders don't differentiate nx vs. classic) nx2k mc with the proper valves (or take them off a wrecked one if you know they're original). The nx2k bias valves (the funny looking six-sided pots screwed into the mc with the lines screwed into those) were set by the development engineers for those fat front brakes and small rears. 3 works pretty well; made a noticeable difference, especially with the worthless tires all my research led me astray to (BS RE950's). Greg can find the mc.