Nice one. Curious though. Does the reverse show like you have it or with the winged caduceus like I show it? At least the way you present it, one can read the reverse legend.
The majority of the pictures I've seen have them as you and others here present. My ready-to-rock horizontal presentation is just a personal preference since the caduceus just reminds me a winged guitar . Good point about the reverse legend being more easily read this way, though.