Originally Posted by Brew1brew 
I have to believe that if a lens is off a bit that the lens needs calibration not the camera.
My testing did not bear this out. My DA 70mm front focus on my K10D and two other K10Ds in the store (tested on real object, not 45 degree chart). But it focuses perfectly on 2 separate K100Ds in the store - how do you explain that?
I suspect that it is possible that future firmware upgrades will not have the debug mode accessable, Pentax Service centres will have a separate service firmware patch that will enable resetting adjustments to be made by service centres only.
I hope not, otherwise I'll just keep my v1.1.
Because even if you change the settings at service center, you still run into the problem of affecting other lenses. This debug mode is the only way to customize settings to each lens. I hate messing around with debug mode or service menu as well. I wish K10D is more accurate in AF under all circumstances. But at this point, I can't think of any other way I can get the accuracy I want in critical focusing in all my lenses under various lightings.