Lucas,
Do you have the adjustable timing on the TST?
Have you tried this Smarty program?
Smt3V307D302B. zip
I have a little timing rattle but not bad and I can adjust it out with the timing adjustment of the TST. It's working very well with the TST.
I also tried this Smarty program:
Smt3e_306_502. smt
If I remember right, the title was wrong and the actual program was Smt3E_306_302. smt not 502. I really like this program and it worked great with the TST, however the mileage sucked! I thing Marco had adjusted the timing way back on this program. He told me to try the Smt3V307D202B but the lowend wasn't like I wanted so I went to the Smt3V307D302B and like I said above it has been working real well. Haven't had a chance to check MPG yet.