And then there is the Blacks. And Nacets. And Perma-Sharp Supers. And SuperThins. And Astra Stainless. And Astra Platinums. And Goals. And Platinums. And (expires breathlessly).
Greens meaning Super Stainless I presume (rather than Permasharp?). I'd agree with that.
The Yellows seem more prone to nicks in my opinion. They are also a bit rough on the first pass for me and a couple of others have found the same.
I've got some Gillette 7 O' clock yellows (5+1free) in a sample pack. I won't be using them just yet so I may be evicting the moths from the pack by the time I do.