I have the same truck as you but 2007 LMM. I was in your shoes and thought I was going with the hot/2 PPE... last minute I for EFI LIVE with the DSP5 switch.... I also did some transmission upgrades to hold me over till I get the boss tranny...

I know now if I would have bought a hand held I would be selling it months down the road to get EFI Live. I am glad I bought it and would never look back...