Hi Dave,
Sorry about the late reply - I don't check the forum as much as I used to. Anyhow, I had no issues ordering from Fred at Rogue and with the SCT Tuner itself. I originally ordered the X3, but Fred ended up sending me the Strategy Flash tuner instead with his custom tunes.
As for the tunes themselves, it's hard for me to say right now since my truck isn't a daily driver. I have gained better fuel economy though....just not enough to pay itself off right now. I have no doubt if your truck is a daily driver and you're doing a lot of highway driving that you'd see quite an improvement.
Here's his email:
fred@rogueperfomance.com
I hope this helps.
Regards,
Steve