So, I've had the new dogetank for about a month now and I love it with the rba. Great airflow and hits smooth. The problem I have is that it leaks just a little bit every time I fill it. After a few puffs on it it is fine. I know it's from breaking the vacuum when I take the top cap off, but there's no juice flow control and we en when I close the airflow off I can still inhale slightly on it. Anybody master a wicking technique on this bad boy yet? I've tried minimal and copius amounts of cotton but to no avail. Opinions?