ive been vaping my menthol juice and i like it since i used to smoke menthol analogs. But im going to start exploring different "fruity" flavors. I used to own a blu and they say to blow on the atty to clean it and get all the old juice off. can this same method be done with a 510 manual? just hold the button and blow? or hold the button and primer puff until no more vapor comes off? i havnt done this yet because i do not want to burn up an atty. is there a special method?