300zx BMC which one?

[s13rb25det]

all right I know this has been talked about before but I want to hear from people that HAVE aready done this swap! this is the deal, I have a 91 s13 that I plan on doing a z32 front brake swap on. I have a set of aluminum 30mm calipers and the rotors,swaped brake lines,and axis pads, all I need now is the bmc I am just unsure of which one I need? I looked at the right up on importnut.com and the 300zx that uses the 30mm alum. calipers uses the 17/16th mc but then I hear that using this bmc makes the pedal VERY hard! can any one verify this? which bmc have you guys used? '1' 15/16 or 17/16? and how did you like them? I want a firm pedal feel but not to much that it becomes a pain for every day driving!! also I hear there is a difference in the nabco and tokico mc what are the differences and what do you use? thanks

[s13rb25det]

I was also told that the auto version of the 240sx uses a 15/16 master cylinder over the manual 7/8 this would be very cool if it is true!! I know some one out there has the answer!! let me know!