After trying to clearance all the OTHER parts that the cam lobes hit in the motor I decided the best step is to grind down the noses to the minimum tolerances allowed. There will still be a need to notch a the connecting rod cap as shown in the pictures, but to avoid having the notch the counterweights in 2 different spots, it's best to grind approx 0.030" off the noses of the lobes and to also grind the center weld down. Stay tuned to the only site that cares about your Sensation Mowers for updates.