G... you are correct that 6V kills the flavor and is too hot, but I have yet to kill a 510 atty on 6V. I'm probably just lucky though.
As for the inline batt on the passthough, it has its advantages. You can unplug and run (nearly) all day on it. And it actually runs closer to 4-4.2V when charged so it's still a better hit than a stock batt.
As for the inline batt on the passthough, it has its advantages. You can unplug and run (nearly) all day on it. And it actually runs closer to 4-4.2V when charged so it's still a better hit than a stock batt.