You can get both forward and reverse pattern C4's in full manaul operation. The difference occurs if you want to use a transbrake. Fred's transbrake valvebodies are reverse pattern, billet, and super tough.
The converter is too loose for my setup but that's not a measure of it's quality - more a case of us not tuning the car with a manual first to discover the exact characteristics of the engine combination. You usually have to chase the converter a bit in turbo cars (especially turbo&nitrous cars) so i was prepared for this. My converter will go back to TCE to be tightened after the next street meet i go to so we know exactly how much to tighten it up by.
I thought that losing 2 gears and a clutch was going to make the car less fun to drive.....
....oh how wrong i was I couldn't be happier with this box. It's worth noting that Fred replaces every bearing in the C4 with a needle roller bearing for added reliability and longevity. Something which not every gearbox builder does.