Attention: TDR Forum Junkies 
Don't want to start a box war cause I know Smarty has many proponents but . . . my vote is for BDDL for the triple stack. I have both, the 130hp BDDL to be specific. I stack either one with TST and 80hp Dr. P pressure box. The smarty has awsome responsiveness at the slightest touch of the pedal. Rivals BDDL in that department. The rest of the pedal is just, on my truck, black smoke. I have tried every setting on the Smarty, stacked, not stacked, TST 0-5 hp and tq, pressure on, off. The best seat of the pants stack, for my truck, is BDDL on extreme (130hp), TST 3/3, and pressure on. The pedal is touchy, little more wouldn't hurt though, and truck screams to 3400 rpm's. Alot less black smoke than most of the Smarty stacks, but most important for me is what happens from light pedal (from a stop light) to just a little more pedal (passing). BDDL stack screams at mearly 1/4 to 1/3 pedal. With the Smarty, seamed to just smoke out the whole road and didn't get the take off I've grown accustomed to with the BDDL/TST/Dr. P. Also on the freeway with the torque converter locked up, from hard to very hard pull with minimal pedal movement on the BDDL stack. The Smarty triple stack has the same light pedal pull, but took me nearly full pedal to peg the speedo as well as longer time period and a whole lot more smoke. Once again I have both, and will continue to mess with it, but just wanted to chime in.
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