RP is somewhat hyped. It's just dye.... I think the Amsoil Sychromesh is a way better fluid for the mtx-75. The Ford Motorcraft XT-Q5-XS is an insanely high quality fluid, but I think it's too thick for our tranny's. Lots of people complained with cold shifting, especially in colder climates. I use that on the MS3 and it has been doing very very well. The amsoil in the Svt, I tried it on a whim since it's exactly what our tranny calls for. It keeps getting better and better. Very happy with that. I would say the RP syncromesh would yield similar results, but the price is way too high.