Cut It Close,
The baffle is around $185 and closes off the front of the deck and defines the cut chambers more. If the deck pitch is off it will contribute to the blow out and the cut quality. I would check the deck pitch, if tire pressures have been lowered make sure someone is on the mower when the pitch is checked as operator weight will drop the back of the mower down if the tire pressures have been lowered. If the deck pitch is flat or negative that needs to be corrected because even the high lifts won't perform their best with the pitch not correct.