I hit a rock the other day where I've mowed for years rock free. I couldn't hardly pick the thing up out of the ground it was so big. Of course it would happen right after I put my new blades on.
my experience exactly. Some of them are pretty **** big. My nearly new mulching blades don't look nearly new. I doubt I could get them sharp and balanced properly again. Since I'm switching the mower on/off frequently, I'm currently using my 72" RFM instead. It rides a little higher but the cut isn't as nice.