better shift quality?

I have never shifted a T56, but I have shifted plenty of rail shifters, they ain't better than a fresh A833 setup. When I got eh swap done in my 87 Diplomat I could shift with two fingers. New shifter that I took apart, polished up and greased. Metal bushings instead of plastic, shimmed the spring clips so there was minimal slop. New bushings in the clutch linkage, with a metal vice rubber bushing at the fork. I guess if you want to compare a wore out A833 setup to a new T56 install, then yeah I guess it might shift better.

4 speed carpet? I have never had a problem getting the existing carpet to cover the hump.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.