After a recent rash of cartomizer issues, I've dug out a couple of lr 510 atties I bought on a whim. I'm finding I loooove direct dripping. I'm nearly as satisfied with 3.7/lr as I was on my sr boges at 6v. Other than the obvious of get more power, how can I improve my dripping experience? I currently drip 3 drops at a time before it leaks... is there any way of increasing the atty capacity to maybe 4 or 5 drips? Is a rebuildable atty worth the investment? If not, any atties known for better flavor and vapor production?