From what I've seen with a couple of friends bikes, the Rockets NEED Tuneboy ( or possibly PC3 but I don't know the ins & outs of the PC)to run properly. The aftermarket Triumph tunes the dealers put in arn't a patch on what can be loaded in, & the bikes run so much smoother with Tuneboy. Stuff like stepper motors can be corrected if the idle is running high, etc,etc.
Ive set up 4 rockets & a Triumph Scrambler with tuneboy so far.