Hey Zepp.... don't let these guy scare you. They are just blowing smoke. If you have spent any time here you would know them by now. If I were to buy a new programmer right now it would have to be the Gryphon. It can be custom tuned and will do what you want it to do. It is the same thing as the Edge on tunable by Bill. Edge used to be able to be tuned. Bill did all the tuning. EPA regulations stopped the Edge from being customized so Bill developed his own. From what everyone has said here (other than a few smokeblowers) Bill is one heck of a tuner. I plan on calling him next week and discuss some options about my tuner. The Edge is a great tuner. It has worked flawlessly in my truck for well over 45,000 miles on lvl 2. I have NEVER experienced any problems. Most of the problems that people do encounter with the Edge are user error. If people would just take the time to RTFM they would be all set. You will be able to compensate for your tire size as well. This will probably make the biggest difference in your driveability. I can't see waiting 3 or 4 months for a tuner. Sure, 1 or 2 weeks, but 3 or 4 months...... GIVE ME A BREAK!