Here's a question for you. Im under the impression HAP40 blades are usually clad. They are on Spydercos, and I think on most Japanese kitchen knives, at least those I know of. Will Rex45 be clad as well?
Did someone actually say it is a downgrade from M4? No way. http://www.zknives.com/knives/steels/steelgraph.php?nm=cpm rex 45, m4, HAP40&hrn=1&gm=0
It is very similar. Rex45, HAP40, and M4 are all pretty close, except REX45 and HAP40 both have a lot of cobalt and M4 has none.
I went ahead and preordered this one after seeing the impossibility of scoring the pm2. Didn’t want to miss out on trying this steel. Plus burnt orange is the most beautiful color in the world!