Agreed, If I want low end street fun I leave my Smarty on 8. If I want better top end or when I drag race the Smarty gets turned to Level 2 and TST Comp and TS MVP do their Magic.
To the OP, being as you just have a timing box right now. You want a product that just adds fuel. I too suggest the TST or TST COMP (also being as I've had mine for 3-4 years without issues) and because it runs strong! And also with our COMPs, at higher settings, once you start building 2-3lbs of boost, the COMP will start adding fuel.