So in the past I've rotated through razors over the course of the year then refresh them after the rotation gets dull. The last 6 months or so I've been using the same razor. It's a wedge grind and I like how it plows through my thicker beard. I usually shave once or twice a week so when I do shave, it's a pretty good growth I deal with. Here's my question: how often do you find you have to refresh your edge? I'm finding I'm getting about 6-8 shaves before I start feeling the tugging and burn.