I hear you on the PrecisePlus 18500 Vaporologist! While i was developing it, i called it the "Gap" mod as it filled the gap between smaller 16340/14500/18350 mods and the bigger 18650 mods. With the 18650 mod, you always feel like you are carrying around more length and battery then you need and on the smaller mods, you feel like you are coming up a bit short in battery longevity. It's Goldilocks...just right!
The PrecisePlus 18500 mod is 15 mm shorter than the Precise 18650 and 15mm longer than the PrecisePlus 18350.
Heres a photo comparing the relative lengths of the PrecisePlus 18350, PrecisePlus 18500 and Precise 18650:
Yea, I hear you David... When it comes to the P18, I didn't buy it to have a big battery mod but rather for its 6V capabilities. I prefer a smaller size PV for that voltage and that's why I acquired the P16 to have a super small great PV for when on-the-go for a couple of hours at a time. The PP18500 just seems like it would be perfect for a more compact size paired with very good battery life at 3.7V. Me likey
Btw, I think that a tapered top option on any Precise should be called "The Vladdy Cut"