I'm glad you posted here Scooter, I for one don't feel there's alot of difference between a 5sp NA and a 6sp TT, here's my reason.......
When we were coming back from Portsmouth and we were all having a blast up the motorway, I was amazed at how quick your Sup was for an NA, especially when we hit a few roudabouts.
On the straights, yes a TT would pass an NA, but you won't fly passed.
I for one was well impressed, maybe its that you are an excellent driver Scooter or you've got a bottle of NOS hidden in the boot, one or the other
A 6sp BPU Supra like mine might be fast in a straight line, but it can be murder in the twisties and takes a lot of getting used to.
Sometimes suffers from too much power coming on when you don't want it or least expect it.