No, I have not.. I will have to take a look at them.

I have been happily using Switchcraft A and D series connectors since the early 80's, so it will take quite a bit of persuasion to convince me to switch.

I use them in 3, 4, 5 and occasionally 6 pin versions, and one of the things I really like is that the inserts interchange freely between shells, so I can swap them around as needed, without having to stock all possible permutations.