Eh, more than one way to skin a cat and all that.
This is a full depth pattern that looks a lot more even, Mike, but there is a lot of flaking. How many passes did you make to get this pattern?
You might try putting a little more than half the width of the wheel on the end of the work and apply enough pressure to make sure the pattern tracks. You do this by turning the chuck by hand and watching the pattern emerge. If it mistracks, apply more pressure to the knurls. Once it tracks, increase pressure until you get the pattern depth you want, then back the tool off of the work. Make sure the locking nut is tightened against the main nut so it can't back off on you. You should have already put a generous chamfer on the work so start the lathe and apply some lube, then just feed the tool onto the work piece and run it down the work piece. This is made much easier if your knurls have beveled edges or is a convex knurl.
If you wish to avoid flaking as much as possible, open up the knurler to take pressure of the wheels and just back the tool out. Or you can leave it in contact but feed out fast.
Give it a try.