Very true, it's about half a mm thinner and 1.5 mm shorter than the 14500 mod I'm using right now, and it's one of the smaller 14500's out there.
A P+14500 would still be awesome - it would be like the 10440's big brother. Your mods usually seem to be about 2mm wider and 40mm longer than the battery, so a 16x90 precise would be one fine looking piece of equipment!