I upgraded to the Clutchmasters FX200 (what used to be their "Stage 2") when I went to a 4.23/JDM short-geared transmission.
I'm nowhere near the SC'd guys, but I wanted a clutch that I wouldn't have to worry about no matter how much NA power I made.
The clutch itself is actually "softer" than OEM - RYU tried it out and couldn't believe it - and was approximately the same price as OEM. A no-brainer for me. I have used Clutchmasters exclusively for about 15 years now and have never had a problem with any of their products.