I have used most of those mentioned. The S24 system the longest. My Zwickey's and other two blades get wicked sharp on that system once the angle is set. Just remember to clean and oil the files regularly.

I too switched to Woodsmans a few years ago, so now just use a file and diamond hones to finish. I have been playing with the 220 Muzzy Phantom's lately so will use the S24 on them as needed.

The KME system is top notch for the two blades as well, just a little on the expensive side.

Nothing is fool proof for a sufficiently talented fool !!

"Keep your booger hook off the bang switch until your sights are on the target".