Personally, I think the gearing in the MTX-75 (Duratec) is pretty good, with the exception of 1st gear. I personally think it runs through too quickly - you're barely off the line and it's time to get into 2nd already. But once I get there, shifting at redline puts me right at the start of the sweet spot in the RPM range in the rest of the gears.
My biggest gripe is that I MUST shift into 4th gear within 100 feet of the finish line in a 1/4 mile race. If there was a way to avoid that (say, run 3rd out for the entire 1320 feet) I would be quite happy. I'm not sure what RPM I'd be turning in 3rd at 90 - 94 MPH, but if a chip can't get me there, the next place to look (when I hit the lottery) is in the gearing, I suppose. Either to run 3rd all the way out or make shifting from 3rd at 7000 RPM put me at a higher RPM in 4th gear.
I don't really know anything about gear selection; mostly thinking out loud here. It is going to be quite a while (KNOCK ON WOOD) before I take the trans out again.
