I've not tried the EVH signature version, but I've tried the MM Axis that succeeded it. There may be some subtle differences between them that I'm not aware of. It all depends on you whether you'll notice a difference or not.

I've bought two USACG necks with the EB profile, and it is my favorite neck profile by a mile. However, I chose a wider nut width, different frets, and flatter fingerboards than MM uses.

-Ben