You can also change software using your pc, so you can go back and forth between the standard Revo, and TNT Revo, there is also a TNT-R but your truck has to meet certain parameters before you can run it safely.
If you purchase the Smarty from Bob Wagner, he will send it with the software of your choice. Then you can download the other softwares off the Mads website to your pc, and you can change softwares at will.
I have an old S-04 Smarty with many software choices on my pc, so alot of different tunes available as long as I do not download the latest softwares, if I would do that, I can't go back.
I believe I would order the TNT Revo(you have an 05) with the POD, that way you can find the sw# level that suits your truck's mods the best, and then just dial it back from 100% to whatever in 1% increments, for your daily driver.