I've been finding great deals now online, so I am patiently awaiting my first mod to show up (should be here within two weeks). I tried a rebuildable atomizer on a KeCig k100 mod the other day, one that has no tank, so air passes through it more readily, and I've got to say the vape is impressive with these rebuildable atomizers, it felt to me like the vape was making it's way deeper into my lungs. I guess you can adjust the air flow on many rebuildables. So I just ordered two new rebuildable atomizers (tank-less) with plenty of kanthal wire and silica cord (for replacing wick and coils). Now I patiently await my orders while vaping on the setup I started on 5 months ago; same batteries as you (the 510s) and different tanks that I bought online, my favorite being one called a V-Core 2.0 (it's rebuildable with a dual partition tank, right now with a cotton wick that works well enough and I can change it whenever). I now understand the importance of changing your coils and wicks at least every month, otherwise they'll get burned to a crisp. Something that took me a few weeks to learn. But that's what this site is for; learning more, and for me it's about learning how to improve your setup until you have it just the way you like it.