Yes, I use paper clip through mouth hole and push it out, take out filler, pat dry and cut some off. Take off all the surrounding foil, Fill tiny little cart with about 5 drops, (guess it depends on liquid thickness) then put filler back on top. i only keep about 1/8th of an inch on top then push back down and good to go. it is a little bit a pain cause it holds so little but I only use mine for stealth
vaping anymore. the 510 and ego get used when i dont have to hide.
Blu is perfect for stealthing, even with your own
juice the vapor is alot less than others (tho not bad on TH) so I just inhale and either hold till it is absorbed or blow into a napkin, no one has ever noticed yet.
Though I just did the ego yesterday playing in poker room where they would not allow
vaping but since i blew into a hankerchef they did not mind since nothing lit up on the end and no vapor was visable. It just looked wierd inhaling it and blowing into hankie, couple of people would stare but only 1 asked about it and told him, no one at the table minded at all.