Well thank you all, doesn't seem like that good a point to me, still has some steps in it. I had to shorten it most of the way into that step as I could not get a flake to run through it. I didn't even try to notch it since the concrete is still in the way on one side. I noticed the concrete is really obvious under the fluorescent lighting here at work so I snapped another pic, actually of the back side where it's more noticeable. It's really too bad I couldn't have run flakes through it, it would have been my best blade so far. O well.
Patrick, I just watched your new notching video. Thank you, thank you, thank you! I have lots of new things to try now.
George