Sanchin hit it on the head, but giving the dimensions you did, what might change is activation methods. For instance, somebody with the classic beerbelly would make the liver/gallbladder crossing on the edge and slightly under the rib-cage (or maybe it's on the floating rib...can't remeber for some reason..Sorry) hard to hit using the also classic cross upper cut. Instead, you would use a downward strike going in and penetrating to make it work. Same point, different activations based on body type.
I'm not being exact, but you should get the picture. Also, some points may be significantly harder to hit depending on whether they seem to take to bodybuilding or not. Some guys with huge wrists just wont feel the wrist points, but then more than likely the point on the dead senter of their forearm will hurt like burning fire because the overdeveloped muscle on the other end is stretching the nerve out.