I never used the old MX 518, (in fact I was using a trackball). I am looking for a good mouse that teaches and forces me to palm grip.
I like almost everything about the MX 518. Buttons are nice and crisp, weight is exactly right, not too heavy, not too flimsy, materials feel great, cable is the best stock cable I have seen so far, left side is super comfortable.
But that ledge on the top right side is killing me. Where the **** am I supposed to place my ring finger? It's too small to place it on top of it and too pronounced to place it under ist.