I have not, I read the injector key on those are different and don't work in vintage razors? Have you tried them in any other injectors other then the supply?

I just tried it and it does not work on my vintage Schick.

@@pjwroblewski thanks for checking! It's unfortunate that they made it basically a proprietary blade loader. I suppose I could pull a blade out, reverse load it into a different injector, I do that with the schick b20 sometimes