I use a 20-gauge needle on a luer lock syringe. I got a needle-tip bottle from gotvapes, but the syringe works better.
I fooled around with removing the innermost seal to fill, but I was never confident I was seating it properly when replacing, and that can interfere with wicking.
I agree, there is no reason to leave those things in there..I just pop out all the seals including the one sitting on the cup then pour the juice straight in from the bottle. It's much easier than using messy syringes imo.
Seriously just the middle ring? wouldn't it shift out of place during transportation?
So far, no leaking.They've made a few trips in my purse and 1 dropped down the stairs ( don't ask lol)
I do use 100%VG so maybe that helps.