Another alternative would be to use standard connector labeling practices and label only the pins at the end of the connector and refer to everything as a number between 1 and 40 and hope everyone is an EE student. Didn't think that would fly either, so this was a compromise.
I think counting from 1-40 is much more straightforward than the progression of:
V+, G, G, G, 8, 1, 7, 2, 6, 3, 5, 4, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, R, U, L, D, D, L, U, R, G, G, S
No offense intended Randy, I love your products, but having a non linear / non-chronological system where multiple pins have the exact same identifier seems like an un-intuitive way to do it. As I try and work my way down the IDE cable, I'm going from L to D to D to L to U to R

It'd be much easier to know that 25 comes after 24 and I can always figure out which wire is #24... because it's the 24th wire. If I give you 40 ends of an IDE cable and say "Tell me which wire is 'U'" How could I accomplish that without counting anyway? You have to count and then go to some kind of "key" or "legend" to figure out the answer. If you're going to count in the first place, then why not just make the 5th wire be wire number 5?
You don't have to be an Electrical Engineer to do this. Anybody who is 5years old or older can count from 1 to 40 and quickly tell you where any one of those numbers lies in the progression. I don't know who can say the same for the series of pin-labels on the KeyWiz. Maybe
you can immediately tell me which wire is "R", but I doubt many other people could do that. Everybody else has to count and then look up the wire.