Hi Tyler
Thanks, might have to find an original screw as the end needs to be stepped down and a lesser diameter of the screw in order to fit in the push/pull recess. The blade set up is unusual with them not being on the same level, maybe it gives the clippings a second chop to make them smaller on the way up and out the chute ? I might give a light run over my lawn and compare what comes out with what my conventional 4 blade 2 stroke victa throws into the catcher.
Cheers