I've been using my Protank 2 for about 2 days now and had a problem when I switched flavors. When I cleaned it out and put it all back together the draw was really tight and lots of gurgling. So I pulled the coil head out, blew all the juice out of it, put it back in and still had the same problem. It was also leaking a bit on the battery. I'm probably not priming it properly or doing something wrong obviously. Any one that ahs some tips on how to fill it so I don't have to spend an hour taking it apart, blowing it out, wiping off the battery, etc? Thanks in advance.