Just wondering if the milliamp-hour ratings on the Ego type batteries are overated? I've been using a Joye Ego with 650 mAh batteries and one battery lasts me the entire day. Now I'm on the hunt for a tube mod and would like something compact with the same or better battery life. Was interested in a GLV mini but never heard back from the company so I scratched them off the list. The Puresmoker Icon looks great, compact, and I love the idea of being able to lock it out. I'd be completely sold if it worked with AW protected cells (900 mAh?). The high drain cells are only 600 mAh, but could I expect them to last as long as the ego batts? Probably overthinking this but thanks for any info!