I've got a new Super Z 60" with the 31 Kawasaki. Lot's of pine trees and pecan trees in the yard. Pine straw is very hard to mulch, but I'm wanting to try some different blades to see if they will help. The factory style high lifts work well, but I'd like to try the high lift Gator blades. Is there a cross-over for those that will work with this machine?