Custom Tunes for SCT XCal2 questions

[mfdengineer]

I have a few questions that I am hoping someone can help with., I have looked through the forums and have not found anything related. I have an 05 Mustang with custom tunes but I'm not as familiar with the F150 tuning.

1st question: I recently added 20'' OEM F150 wheels with 325/60/20 BFG Tires and need to correct my speedo to compensate for the tires. Is it possible to change this parameter with just the tuner only or does it require uploading a custom and then modifying the tire size?

2nd question: Can I get custom PHP tunes for my SCT Xcal2 or are they only compatible with the gryphon? I was looking to get a gryphon, but I already have a scangauge in my truck and I picked up a SCT XCal2 used for use on my truck.

3rd question: If custom tunes are available for use on the XCal2, what is the pricing? I could not find this info on the PHP website.

I would greatly appreciate any input on this, I would love to get custom tunes for my truck as the bigger tires have really affected performance.

Thanks