Eight-second draws every 15 to 30 seconds? I doubt I've hit a mod for more than 3-4 seconds since I put the eGos down...then again, there's the guy that was posting a couple weeks ago claiming he takes minute-long draws and competes with his friends over it.
I'm curious whether we've got another burnt-wicking issue with this study...though the diketone tests themselves don't surprise me a ton. Wish the results would be reported in proper context alongside the levels of cigarettes themselves and the levels in actual popcorn lung patients. Not brushing off the diketone debate and I do use my DIY to specifically avoid the questionable compounds, but in all honesty I don't entirely overlook the points of the people that roll their eyes at me for trying to limit my exposure.