I just ordered a STR8 edge razor myself.

I have a zero edge on my SS4 and it is starting to get a secondary bevel and even has a couple little chips. It still cuts like a dream though. I left it a rough satin so when I do sharpen the whole bevel it does not take much to clean her up.
Usually only a quick hand sanding.

"if you want to be a hero you have to learn to drive stick"! Sara Conner