lol, seriously? Really? You know the 6 speed box was originally designed to hold on a 300hp, 270 ft-lb V6 right not a 140hp 4cyl motor that our trans were originally designed to hold. Even Mazworx has said these 6 speed trans should hold reliably to 600+ hp easily, no matter the clutch type. Have you seen the side by side comparison of gear thickness, size, gearbox, case design. Its a night and day difference.
My competition twin disk was not anything like an on/off switch. Once used to it, its very easy to drive. And you know the Clutchmasters setup is basicly identical to the Competition clutch setup right? lol. They use basicly the same parts at least designed the same. I know the twin disks can be harsh on gearboxes but again I dont foresee any problems with the 6 speed holding the power and taking the abuse from the twin disk. I just use 85w-140 gear oil and it seems to cusion the gears very nicely. Ive yet to break a gearstack on the old boxes when using that.
There are a lot of advantages with the 6 speed but i understand its money. Just the conversion to the 6 speed alone for me cost me around 2500, but thats including the clutch setup as well. But i think its gonna be more than worth it in the end.
But hey what do i know, ive only seen side by side comparisons and so on. Not to mention beefier axles, hubs, better LSD, bigger input shaft, smoother shifting, and more.