I bought the caspian for abalone diving and want as much cutting power as possible. So I'm attempting to get the spine of the blade as sharp as the lower, factory edge. I took it to a knife sharpener to put an edge on top, but it wasn't nearly as fine as the factory edge. Last night I spent 2 hours trying to get the edge where I'd like it using my Spyderco Sharpmaker, but no matter how many times I passed the blade over the ceramics (at 30deg), maintaining as steady an angle as I could, it didn't seem to help. It's sorta sharp now, but not shaving sharp like I want it. Not sure if I'm doing something wrong or ??? Any tips, tricks or recommendations appreciated!