Run both, I ran the smarty on the upper numbers and TST down really low. Granted I had the stock clutch still. But everyone I know loves that stack and runs the smarty on 8 or 9 and leaves the TST around the 3's or 4's
Another from the Dp, I dont post much and dont currently drive a diesel. I am however currently in the market for one. Mostly a reader but will share my knowledge when I can.