Of those of you playing an American Standard URB, do you position your bridge centered on the inner notches of the f-holes or closer to the fingerboard? On mine, centering the bridge on the notches would produce a scale length of nearly 43.5". Mine is set up with the bridge a bit closer to the fingerboard, for about a 42.5" length. That location also produces a D neck. At the notches, would that make it an Eb neck? Any gain in tone or resonance with the longer scale?