I've been vaping a year, using the 510 with the 1100 mah battery and all has been fine. Sometimes I drip, sometimes use the PTB and most recently the buff puff mod. Problem suddenly is a very dry burn no matter how much juice is on it. I blow the thing out, wipe it out, and this is with a brand new atty, fill my buff puff up and it works for a little bit then no vapor, flooded. so I blow it out again try again, same thing. So I figure I'll just drip. Same thing. Very harsh burn so I keep adding juice drop by drop, still dry burn then no vapor! This can't be a coincidence and I don't know what the heck I'm doing wrong all of a sudden. I used to have an atty last months, now I'm lucky if I get a day out of it. Driving me nuts. Help? Ideas?