I put smarty jr on my truck earlier tonight. I tried it on the performance setting sw5 and it is WOW! I pulled the xzt off my truck before installing jrand decided to take it for a stock test drive. I can't believe how sluggish stock seems anymore. I'm never going back to thatlol. If anything at some point I'm gonna get a clutch and upgrade to Sr so I can see what #9 is all about