You know, I am not tempted by the CR2 bodies at all ever since the Vital Gear bodies came out, especially the 2nd generation ones. It houses the R123 and the whole setup is just 2mm longer than my U60. The small size of the CR2 body is kinda thrown off by the size of the tailcap(since small is what you were after). of course the Vital gear cannot take 2 stage tail caps, as an inherent drawback.