Larry, I haven't asked about the grinder. I'm not worried about it, I feel pretty safe doing it the way the guy that invented and built them does it.
Here is a quote from Mike Sohm (the owner of Magnus) from another site:
"I believe the snuffer is very easy to sharpen, in my opinion, you take a 14 inch mill bastard file and file from the back to the tip, with medium pressure approx 15 to 20 strokes, you will feel a burr. You lay the file flat on 2 blades at once, turn over to the next two blades until you have done this on the three sets of blades or flats as I call them. You should feel a burr on the blade, next take the file and file lightly over the flats 10 strokes, very little pressure. I than go hunting with them. I shoot 57 lbs, and I always get two holes. I also have to be honest, WE DONOT RECOMMEND THE SNUFFER TAMER FILES, IT WEAKENS THE TIP AND TAKES TO MUCH MATERIAL OFF THE BACK SIDE OF THE HEAD. thank you "
Those are his caps, not mine and as I said earlier, you guys do it however you want. It is not the ONLY way and people have been getting them razor sharp for over 30 years with nothing but a hand held file and/or stone.
And they "feel" sharper because of the more acute angle.
I'm not here to argue, just to point out the facts.