I used to run the 4.10's with my T5 and loved them. They were a great gear for the track, leaving at 5500+ on 8.5" slicks. They're also great around town. Fifth gear can actually be used around town without the bucking encountered with numerically lower gears. At highway speeds, the engine RPM was still real reasonable and in-fact, the 4.10's took the engine out of the dreaded 2200rpm drone zone. Its the only gear I'd run with the T5! I switched to 4.30's mid-season last year, but my street time was pretty limited on them, but they're only about 5% lower than the 4.10's. If you want real kick-in-the-pants acceleration, go with the 4.10's instead of 3.73's.
Just my $0.02.
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Jeff Chambers
Trophy Stock #3
11.97 Seconds / 114.5 MPH
Chambers Racing Team