Whaw, this is one active forum thanks for all the replies, I think I know why you should or shouldn't kill or join the edge now. AND have learned other stuff at the same time.
I've been shaving with a SR for five years, but only just ordered some honing stones to be able to revive my grand-grand fathers SR.
It's already de-rusted and shiny like a mirror, now sharpening can begin after training on some other old razors.