I have never ran into a situation like this, but I was edging a new yard this week, and the sod was raised really high above the curb. I put a new blade on, to break in the edge, but this was some really thick stuff. I couldn't even get to find the edge of the curb! it had to be at least 4 or 5 inches above the curb. I couldn't even get the blade down into to the curb. What do you guys do in these situations?