Yes, I have been mowing slower the last 50 hrs of use and the vibration has increased. Still cuts good but just gotta mow slower. I will post pics Thursday and usually I am picky with safety and image and these blades are just done. The bike accident set me back in life and I was going to change the hydro fluid for the first time even though the hydros work perfect still and aren't loud like most other ZTR's. I always changed the oil and waxed the mower but gotta get the serious stuff done asap.