i am looking to upgrade my TC to the 89% DTT-TC here in the next few months. i am leaning towards DTT mainly because of what i have read on here and also after speaking with MASSDIESEL (very helpful!!!) i was mainly wondering if anyone that has the DTT-TC mainly the 89% but also the 91% that lives mear Morgantown, WV or Hagerstown, MD that i could meet and get a first hand look at how the DTT-TC improves the driveability, thanks to everyone,