Speaking of stealth vapes I've mentioned that I use the Vaporesso Aurora. It's a great little device with a 1.2 ml tank, a 650mAh battery, and a 1.40 Ohm ceramic atomizer that lasts about as long as half a pack of cigs normally would. It's shaped like a Zippo lighter so it's perfect for carrying in your pocket. Anyway, the "drip tip" is funky. It's curved so that it will fit in the spring loaded lid and it's deliberately loose so you can turn it to project outside of the body of the device. I found it to be a bit too loose and it allows air to occasionally come in between the drip tip bottom and the top of the tank. So I grabbed the smallest o-ring I had and it was still too large. I put it on the top of the tank, twisted it into a figure eight, and wrapped it again around under the ridge that holds the drip tip in place. It's perfect. Holds the drip tip stationary where I like it and forms an air tight seal so I can get a proper MTL draw.