I couldn't post this in the right forum so i put it here, the UD Zephyrus is the worst thing i have ever come across ( Zephyrus Sub Ohm Tank by Youde - Kidney Puncher ) I purchased this tank due to reviews i have read and many think it is awsome. Oh Contrare. first of all there were no instructions with the tank to determine if it was top loading or bottom loading ( had to watch a youtube to figure it out), secondly even when properly seated it leaks like a sive. i finally loaded it up and let the coils steep for about 5 min and low and behold at a setting of 25W it tasted like burnt rubber. replaced the factory coil with a new one waited again and dropped it to 15W and then to 8W with new steeped juice, again burnt rubber. this thing was horrid.I thought it might be my istick 40W so i put the new tank on my i30 and same thing, swapped my atlantis to the i40W and it was smooth and flavorfull. I went back to my iStick 30W and my atlantis tank.