Agree with Lars, and welcome over here!
As far as tow tunes go, the canned one is set up for loads in the 5-6000# range I think. I tow a 3600# trailer, so I had one written for that need. And, for both my tunes, I told Bill I really wasn't interested in burning rubber off a stoplight, but wanted good passing performance at highway speeds, and was hoping for better fuel economy too.
Bill's tunes improved my driving experience in all those areas over the canned or stock tunes.
- Jack