a lot of people have been saying the plastic cartridge for the ego-t tank systems makes things taste like plastic. well at myvaporstore.com, they have rubber caps you can replace your plastic ones with. since i did the taste of plastic has gone down a lot. been enjoying my tobacco flavors a lot thought i would like the ry4 since it seems to be a common flavor everywhere and cant stand it even tried doing a 50/50 blend with my kamel from myvaporstore and just tasted even. but the rubber replacement caps make the plastic cartridge awsome for tobacco i have a health cabin cheap attie and its not bad except the rubber tip likes to fall off all the time which makes it leak. but since i swapped on the ego t b tank system rubber cap cant tell the difference between the 2.