so your saying if theres no problem just leave it but if there is talked to the guys at blue oval?
I have fairly deep knowledge of the Xcal2...I've fully customized my own TC lock-up and shift schedule.
That being said, you will indeed need an updated program, but you have two choices. Lonnie at Blue Oval can send you an updated program via email (he may charge a nominal fee ~75-100), or if you are knowledgable about the programming, you can do it yourself.
My advice, if you are a novice, do not attempt. You can brake stuff. Buy an update from Lonnie. If you are a typical car enthusiast with some technical background, you can open the shift schedule program and see what you are getting into without changing anything. However, I'd still give a fairly good chance at breaking something. For example, I figured out that 0-20% throttle is all effectively 0% throttle because there is some trickle voltage at the TPS with your foot off the throttle. (If you don't understand what I just said, buy an update from Lonnie). In addition, you would need to make sure that the TC schedule and the shift schedule are not in conflict...that could break something, or at the very least provide for an unenjoyable driving experience.
Now if you were a vehicle and computer savvy guy (i.e. your friends are always asking you to fix their cars and computers), you could pull off programming it yourself. If you're going to try it, I would advise lowering all of the 'mph' points in the shift and TC schedules by the stock-to-4.10 ratio. For instance, if you started with 3.07, you would multiply all of the shift and lock-up speeds by about 75%. Then you could fine tune from there.
Litmus test: if you don't understand very much of the above, call Lonnie.
