Just to clarify something to the less experienced guys? Regardless what mower you have even if it has a 200hp motor doublecutting is sometimes necessary. People are getting crazy about how much horsepower they want. The focus should be on research and design not making a 50hp motor fit on a ZTR. When the lawn is lush, high and wet; double and triple cutting or bagging is necessary for a clean cut. Guys with the Super Z's that mention an RPM drop when they slam the control arms forward; your on a mower not in Nascar think smooth and controlled.