ok so i had some burnt carts sitting around , so i thought i would try something. i carefully pulled out the filler, it was burnt and i tossed it . then i grabbed some tea bags ( emptyed the tea) then i cut three strips ( the same length as the filler ) rolled them up about 1/4 width by 3/4 stuffed the three pc into the cart . Here is the cool part i was able to drip 30 drops into these !!!!!!! put the silicone ring and cap back on . omg 1 primer puff and i am in heaven no gurgle noise and tons!!!!!!! of vapor . the flavor is spot on . Why don't they use a different filler .