edge ez and tst stacked

[RCC]

i have an 2004. 5 and have recently added a tst powermax to my edge ez,im sure other people have done this and i was curious to see what levels were being ran for the best safest power. im currently running the edge on level 3 because thats where my fuel economy is the best and since the tst is new i drive around on level 2. last night i put the tst on level 7 and laid into it,it pulled like a freight train till about 90 mph and the truck fell on its face. also whats the torque enhancer for? thanks ... ... ... ... rc