Agreed. At the GTGs I've had, Iv'e played a RBV and my Jazz V back-to-back just to compare, and the necks feel very similar, though I'm told that the RBV has an asymmetrical profile. They felt almost the same to me. The Deluxe 5s that I've played seemed to be a little narrower than my standard and the RBV.The Roscoe Beck 5 is thinner than a MIA Jazz Deluxe 5? I didn't know that. I thought they were both on the beefy side