1/8th is better for T&T because mainly we spend most of the time tuning for launch and 60', you just get a lot more rounds in. Most of the local yahoos that oil down run it through anyway so they wind up messing up the whole big end so delays are really DELAYS. Usually with either a stick or auto set up for racing the 1/4 last 1/8th is all high gear anyway and the ~1.26x MPH and ~1.57 for ET formulas are pretty close anyway.

The downside of 1/8th mile is the tracks and grooves are much more narrow, for that reason I really like running 1/8th on a Sanctioned/SPEC 1/4 mile track.