I'm a google research geek, and hate spending a damn dime without fully vesting in a topic. I have an upcoming tune and have talked with a number of tuners in the Orlando, Miami, and Tampa area.
One consensus the large majority agree on is with my 7AT, current stage 1 upgrades and planned GTMC38-81 Rotrex, ECUTek would serve me better than an UpRev Osiris tune. They seem to agree that tuning a MT w/ uprev is more comfortable and better results than ECUTek.
I don't have the knowledge or experience base to say why, but I'm guessing there is something to it... or da guvmnt is up ta sumfin!
"4 out of 5 master tuners agree! The fifth was busy with the passenger and the answer was muffled..."