Why did I wait to do this? I started vaping again after a long 3 years back on analogs. I went right into the tank systems and loved them right off the bat. Picked up some U DCT tanks from SmokTech. I had been very happy with them until I started vaping some juice that I just loved but was doing nasty things to my tanks. It was very apparent there was some leaching going on and even one cracked tank. Well I decided to pick up some glass tanks from IBTanked after reading a lot of good things about them. They are absolutely wonderful. I was hoping there would actually be a difference and that I didn't just spend some more money for nothing. Absolutely amazed. My juice tastes sooo much better. If you are going the way of tank systems before you buy another tank, buy glass. For what I paid for all those poly/plastic tanks I could have purchased a couple of glass tanks and had way better quality overall. I will never have anything other than glass. Thank you to the community as always for posting experiences as that is what ultimately swayed me to buy what I did and I don't regret a penny I paid for these tanks.