Has anyone flown with the 5700 mA TB48 battery? Are you getting noticeably more flight time with this battery? I've noticed they are currently out of stock on most sites, but down the road this is what I'd like to fly with. Since we're on the topic of batteries, would anyone be able to enlighten me on battery life cycles? Will batteries noticeably degrade with 20+ flights or does it take hundreds of flights? I love learning all I can on this stuff so any 'neat fact' information would be welcome!