I've had an engine nano rta for a few months and just picked up the juggerknot mini rta. Both tanks have top air flow with side fill. My issue is that everytime I fill either of these I end up with a bunch of juice in my mouth for the first 3-5 hits. I've tried filling very slowly and it hasn't helped. I'm hoping someone who has one of these tanks has experienced the same issue or maybe someone will know why this is happening. It's A LOT of juice! Now after I fill I put paper towel around the air flow intake holes at the top and blow into the drip tip to get all of the excess juice out of the chamber, but I feel that there has to be a way to prevent it in the first place.