OP, replace your master cylinder (CMC) before you mess with dropping the transmission and the CSC. It's cheaper and might actually temporarily solve your soft pedal. But as mentioned previously, start saving because the CSC will eventually fail. You can wait for it to fail and get stranded on the side of the road (since CSC failure is almost always catastrophic) or you can do it preemptively whenever you're ready.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |