I actually didn't care for the 810 Contego and sold mine. I'm now getting a Forum Rift in CPM-M4 to replace it.
Let me say that my issues with the 810 were not with the blade. I LOVE the CPM-M4 steel, takes and holds a RIDICULOUS edge. The edge is also very thin for a big hefty folder. I also enjoy the blade shape, enough tip for some detail work, but great for slicing.
My one complaint with the blade was that I had the BK1 coated blade and the coating got real ugly real quick. The Satin blade obviously wouldn't have that problem.
My problem was the handles......First off, WAY TO MUCH aggressive gimping. It really is uncomfortable to hold. Secondly, that big half-moon cutout is just odd. It makes the blade feel like it is at a weird angle in the hand and made me feel like I couldn't get proper leverage when cutting. It also destroyed my pockets in my khakis and jeans.
Anyhow, YMMV. I know some folks love it. I know I'm going to love my CPM-M4 Rift , as it will have everything that I love about the 810, and nothing that I disliked.
Let us know what you think when you get it!
W