TRE has been synchro blueprinting for over 25 years while other shops are just finally catching on to what makes a TRE transmission shift better.  We are well aware that the synchro ring stops have been changed and that the synchro material had been changed several times since 1986.  We have been modifying the engagement tooth profiles on the gears and sleeves longer than anyone building Mitsubishi transmissions and we're the first shop to make improvements to the oiling circuits that actually work and have proven to reduce temps by as much as 30*F.  If you are wanting your transmission to shift its best send it to TRE.