Any real world experiences of measurable performance gains when swapping one tuning device to another? Either on or off the dyno.

 

I would have to think they all get the best out of any particular bike if they are setup right. Everyone seems to have their favorite but I think most end up getting the job done.

 

The SE tuner Harley sells (SEPST) offers the same kind of programming as the Mastertune TTS but the TTS allows you to adjust for primary and final drive ratio changes where as the SEPST does not.

Looking at info provided by others on here, the new PV by Dynojet looks to be comparable to the TTS.
There are sticky's in the tuner section you need to read (days worth) to make a decision on what works for you.

If you plan to use a specific shop for dyno work, ask them what they prefer to use for tuning.