From my other thread, I can't tell you why the different springs work better, but they do. My setup advice was from Tom Hartman for a mm on a stock pipe. I have geared it down to 1.95:1 (20/39) and put 10 degrees less wrap on the stock 43% helix.
If you want to start with the baseline mountain max setup, you would need to change the weights/rivets, rollers, springs and maybe helix. Once you have that done, you can start tuning it like its a mountain max. From the lengthy conversations I have had with Tom the stock parts are a good way to start. Once you get them all in, running pinned down a nice soft trail you want to be between 8500-8700 rpm. Any difference can be tuned by changing rivet weight. The biggest thing I learned about clutching is that there is no one size fits all response for a clutch setup. Even rider weight could have an effect at the end of the day if your looking for the last little bit.