I'd say that's pretty beefy batt life. I run .7 ohms dual as well, which seems to be my sweet spot on a psudo-mechanical mod. 5 wraps of Kanthal .6 flat wire, fully charged Lg HE4, in an Igo M. Last night I sat down and counted 50-55 decent pulls while measuring voltage under load. (at post screws) By the time I got to the end of test, V under L was about 3.2. and V at rest being 3.5. Granted, a low end side button mod.
Hmm, guess I should try this with mine. Unfortunately, circuitry in the One doesn't allow for voltage measurement at rest. Seems it needs to sense load before firing.