I have had a number of issues/problems with aftermarket (Stens and others) blades for my Ferris mowers. In most of those cases, the issues are that the blades are either a "bit" longer or a "bit" shorter than the OEM blades. When I say a bit, I am talking ~1/8 inch or so, but when you combine that over two or three blades on a deck, I end up with blades that will hit each other...not enough to break anything, but enough so that you can hear them "chatter" when the deck is running.
I never have run into that with the OEM blades. :thumbsup:
Just my experience....
but I am sure this question will get as much passionate and varied debate as "Ford versus Chevy" :biggrin: