Can't help you with 3-blades, don't use them. Only 2 blade and preferably solid.
For my BH's with the spring steel, like the Tuskers, I use a steel file, quick run on a stone and strop. For all others including my single bevels I do it all on a stone. My favourite broadheads (that are pretty much the same as the Ozcuts but cost 1/4 the price - TY Aliexpress) come a bit blunt from the factory, so I work them on a diamondback DC4, whetstone and leather strop to finish. I can shave with them within a few minutes from factory dull edge. I don't mess with the pull through sharpeners any more. Waste of time.
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