[punt66]

how is it any different?

 

[punt66]

So you're saying you sharpen your wavy mulching blades on a bench grinder?

I must really suck at this.

my gator mulching blades have a straight cutting edge. If your referring to the top of the blade where the blade is cut and "wavy" you dont sharpen that.

 

[punt66]

The wavy part of the blade IS the mulching part of the blade, yes you sharpen it, of course!

if your talking about the rise in the blade then no, you dont sharpen it. It doesnt cut. It recurculates the clippings through thr deck.