Ok...so which should it be? ACT HDSS for around 445? Clutchmasters Stage 1 for around 370? Or Exedy Stage 1 for around 330? Also, is it that much important to have a kevlar or steel backing on the clutch opposed to "organic"? (It's about 100 more for the steel...) So ACT seems to be the most expensive, than CM, than Exedy. What are you guys' opinions?