I love the Wicked Edge 50/80 stones, and so do my arms! After I bought the Chisel Attachment, I started reprofiling my wood chisels. The bevels were in pretty bad shape and a couple had chips in the edge apex. It was taking a long time using my 100 grit stones and my shoulders would be hurting. So, I bought the WE 50/80 stones. Wow, what a difference they made! Reprofiling my chisels was so much quicker and easier. I was mad at myself for not buying them sooner.
The WE 50/80 stones also work great for reprofiling knife edge bevels. But you have to be careful because the WE 50/80 stones are very aggressive and remove a lot of steel.