The real problem with the Lansky is the clamp. It's virtually impossible to clamp the knife in t exactly 90 degrees. You'll still be able to get a razor sharp edge, but the grinds may be uneven between the 2 sides. This problem compounds itself if you are working on thicker blades. The way the clamp is machined, you can't get the jaws to be parallel to the clamping surface of the blade. Also, in trying to get the blade clamped in tight enough to prohibit wiggling as you sharpen, you may deform the actual clamp jaws as I've done. The L arms that the rods sit in are totally inadequate as far as strength is concerned. They can bend if you look at it crosseyed.
I have thought long and hard about redesigning the Lansky. First, it has to be made out of hardened steel to prevent deformation. Second, the jaws need to be wider to clamp a broader portion of the blade. This also means that 2 sets of adjusting screws are needed: forward and rearward. Lastly, and most importantly, there must be some method to allow the jaws to clamp parallel to the blade surface.
Oh, and using oil is a joke. Water works muchy better and is easier to clean up. Actually, you want as much friction as possible, so try using the stones dry. Clean them with cleanser when they feel smooth and look black.
I too will switch to my Spyderco Sharpmaker.
Any metal benders out there that want to try to make an improved Lansky with my ideas?
Lenny