Oregon Blades Quality Slipping? What Alternate?
 

having a Z Force 44" I learned soon after purchasing the quality of cut has a narrow margin or tolerance for deck setup. When it's right the cut is very nice.

I switched from CC OE blades to Oregon several years ago with no complaints but this last set were not straight.

I setup the deck to have the forward blade tip to be 3/16" lower than when rearward.
This last set of Oregon's, all three blades are 3/16" or more, either higher or lower at opposite ends.
Who makes Cub Cadets blades for them?

What are known quality blades for my fun mower.