Recently got a '10 SE Ultra Classic with the 110" engine. Of course, next step is to upgrade the engine to what it should have been from the factory ... Been learning a lot from the site (Thanks!) and am getting ready to pull the trigger - would like to avoid shooting my foot of

I suspect the TTS Mastertune and the SEST are closely related. Have been told (by HD dealer) that the TTS is a previous version of the SE tuner, with the SEST the newer upgrade; probably simply new software is true.
The TTS appeals a lot because of the available downloadable tunes from several respected sites. Not as optimum as a proper dyno tune, but certainly in the ball park. Dyno tunes in Tulsa appear to run between $360-$550 and I can't see do that as a routine process as I add parts...
On the other hand, the HD dealers (respectable tuning here) may or may not be able to tune with the TTS???
Q: Are there downloadable tunes for the SE Super Tuner available? Can the TTS tunes be used on the SE Supertuner?
Q: How are the two units related, if all?
Thanks!
Rusty