I honestly doubt could notice differences between BC/Meister, I've had both...
Biggest part I believe would be the spring rate chosen
Some oem spring specs for instance
OEM spring rates of a VZ-R from Nissan, as listed in Nismo catalogue:
VZR standard
Front: FR [0.0mm] K: 1.2~3.05 kgf/mm [N]
Rear: RR [0.0mm] K: 1.72~2.4 kgf/mm [N]
NISMO
Front: FR [-20mm] K: 4.12~5.2 kgf/mm (GYM-C)
Rear: RR [-18mm] K: 2.24~3.47 kgf/mm (GYM-C)
Rather a big rate increase, so will be very interesting to see how they improve the car.
And from the Nismo parts listing codes I have here, the 'GYM-C' code is used to describe 'Gymkahana Compertition'