Comparing manual trans options - variables other than gear ratios?

Passon didn't design, engineer, build, make, or even think of anything. Not the A855 or the Overdrive.
He doesn't source the parts, build them, service them, do the warranty work, hold the warranty, nothing.

And he'll tell you that, once you have an issue, not before.

GFI does it all, and they suckered a third party into dumping hundreds of thousands of $s into it, who also now owns his own b-body with a 5 speed that pops out of 4th.

It's all a scam, they're all criminals.