I've been vaping for just over three months now, and have gone through the upgrading that almost everyone seems to go through. I got a Riva from FF a couple of weeks ago, and really like this set up. I also order some Boge cartomizers. Cartos are new to me as I have been using cartridges and dripping ever since I started. Well, I love the cartos. It makes portability much easier and they produce vapor for a much longer time than carts. Here is the strange thing though. I find that I like them much better on the small batteries. They work fine on the Riva Batts, but it seems to me that they work better (more flavor and vapor) on 510 batts. Is this just a head thing, or is there something to this?