I've been around the since the time that DHP and 3800performance PCM's where the only available aftermarket. Intense started doing PCM's and toasted quite a few engines by ramping up the timing tables. Then it was found that their tranny settings weren't agressive, but they just maxed every value out. Hap-hazard tuning practices...

I know ZZP did have some issues in the past also, but not nearly as much/as bad as Intense.

DHP is the way to go in this case.