Might check out what kind of adhesive is used on the factory installed inserts. If hot melt glue is used , you can always redo them easily. More difficuot if epoxy is used.
Zwickey Deltas have a little concaveness in the middle third of the blade. To get a perfectly straight edge along its entire length, I usually find I need to work a bit of the triple laminated tip down a little with a file before I put them on a sharpening block. Once at that state, the KME would do nicely. It would probably take down the tip as needed as well, but would involve more work and will wear out the stone more quickly.