Have you actually processed Kodachrome before? Do you process it now?

It's not as easy as you think, because, unlike E-6, there is NO chemical reversal. In E-6, you can substitute light reversal (800 footcandle-seconds of energy) for the reversal bath; but in K-14 you have red re-exposure and blue re-exposure steps.

Both of these re-exposure steps are NOT terminal (expose to completion), because one is through the emulsion and the other is through the base; and if you hit either one too hard you'll expose layers that are not developed yet.

I know, I looked at this, since I too have a brick of 20 120 rolls.