What you are describing is true, which makes me quite happy. I only really like one juice, so I have it in several different devices. I don't know why, but they don't all taste the same and I like them at different temperatures. I vape at about 10-11 watts with my RTA, but I like it really hot in the bottom feeders, so I switch out the batteries as soon as the voltage goes down even a little. In my case, there is enough difference for variety, almost like I have more than one juice.
As far as why it happens - tank shapes can make a big difference.
I'm willing to bet, given Provape's incredible quest for accuracy, 4.2 volts on a P3 is truly 4.2 volts, whereas on other devices, they may not equal the same.
Well, I'm given to understand that Ocelots are incapable of prevarication, and I know RB bets only on sure and certain outcomes, so I'll take your word for it! Besides which, I'm not feeling very Sysiphean today. I be jus a little bird ...

