I currently have Redline's "MT-90" in my 18-spline. Don't remember exactly WHY I chose that over MTL but something on Redline's website caused me to make that choice. Box shifts great under aggressive OR relaxed driving. I think in the 5 years I've been driving it I've missed 3rd twice. And I thrash it from time to time. Under relaxed (slow shift) conditions I can feel the gears engage--I LIKE that! Part of that feel is the coarser cut of the 18 spline's gears though.

I don't downshift into first (hardest job for a synchro) at anything over about 15 mph but it always completes the job just fine.