Is the OP asking about the Lansky clamp system or their rod systems? I had a SM years ago and found the angles too shallow for my taste. I like my edges a bit more obtuse than many here, though. I like the old turn box rod system by Lansky, but you have to be able to pick one out in person, in order to make sure the angles of the rods are where you want them, as they can vary by several degrees from unit to unit. Lansky's new Master's Edge system solves that with it's molded base. The angles are dead on, and are going to be consistent, since the bases all come from the same mold. It also gives you 17* slots in addition to the 20* and 25* ones, should you prefer a slightly shallower edge bevel. Also, all the old turn box rods, though shorter, fit the slots in the Master's Edge, so you can pick up a set of their diamond rods for more aggressive work (actually, just buy a whole 2 rod diamond turn box, as they're only about $20, and just use the rods in the ME). The ME also comes with a triangular rod with different radii on its edges for serrations. :thumbup: