I have narrowed my tuner choices down to PRT Performance and T1 Race Developement. T1 quoted the tune for my G37s sedan at $800, and the earliest they can fit me in is the end of May. PRT quoted me a price of $680. I'm waiting to hear back from PRT and their next available session. The price difference is not really a big factor in my decision. I'm just looking for a good tuner with a lot of experience with the VQ engine. Can anyone help me with my decision?