The x-cal is just the vessel. The tuner behind the tune is where the real value is. Doug is a fine tuner... if you can get him to communicate.
Tell your tuner of choice what you want to change and he'll do it. (hopefully)
No matter which tuner you use, you'll get three tunes. I'd sugget a 87octane daily driver, 93octane daily driver, and a 93octane towing tune.
Also, tell them to turn on all options for you to change.