LOL Vapor... you just opened yourself a big can of.... never ever say never. I've had 'em leak both ways...
It looks like you are inviting me to present more details, and I am happy to do so. I will start out by expanding what I stated in my previous post in order to effectively help out those who struggle the way I used to:
Even though I used to have major issues with juice leaking out of my atties, I have not experienced leakage even once, not a drop, in the past couple of months since I changed/modified what I do and how I do it. This is not my opinion, this is a fact based on my current vaping habits.
Switched, I agree that atties can leak even if left in horizontal position, even though less likely. But that can only happen if there is more juice in the atty then there should be while it's resting. If someone has a tendency to heavily flood their atties, they will leak no matter what. But it takes a greater volume of juice causing the atty to leak in a horizontal position than vs. the vertical position.
What components are necessary in order to achieve leakage? Juice and gravity. A dry atty doesn't leak since it doesn't have any juice. It is also true that an atty containing some juice, close to the amount it takes to prime it, doesn't leak either. Have you ever left your atty upside down on a napkin overnight only to find out in the morning that no juice dripped out? Yet after rolling up some tissue and stuffing it in the cart-end of the atty you find that the tissue pulled a decent amount of juice out of it.
There is a certain amount of juice that will not leak out despite the gravitational pull and whether the juice is PG or VG based. The trick is in figuring out how to let your atty rest properly, IMO easier to achieve for drippers than for cart users.
When I first started dripping, gurgle and sizzle sounds, too much or not enough juice, were all too common. For newbies, trying to figure out how much juice is ideal is like trying to figure out how much oil you need to add to your car engine without a dip-stick. After a while I was able to master the art of dripping and finally started feeling like an expert on the subject since I didn't have to think about it consciously anymore. But I still experienced occasional leakage from my atties after letting my PV rest for a few minutes. I always used to leave my PVs standing up on end with too much juice in the atty. Naturally, the juice leaked. Out of frustration I came out with a simple solution: Lay the PV down with a minimum amount of juice in the atty! And it has worked flawlessly for the past two months!
Here is what works for me: Starting with a primed atty, I add 2-4 drops depending on the atty type and vape until the taste slightly changes. If I'm satisfied, I will lay the unit down. If not, I add more drops and keep on vaping. But I only lay the unit down when the flavor slightly changes or is about to change. The change in flavor is my "dip-stick" helping me gauge how much juice is in the atty. If the atty has too much juice, it might leak even in the horizontal position while resting, especially the 901. Another thing I've found extremely useful is to turn my PV upside down for 20-30 seconds when the flavor starts to change. This enables the juice which is trapped in the bottom of the cup to find its way to the top where it can be used.
My reason for posting this is not to prove a point since I don't feel than it's necessary. I simply hope that this can help someone cut the learning curve and start enjoying benefits of vaping rather than having to deal with headaches of vaping.
Happy Vaping!
