Also, how is ur tincture now that it's been a few months , potent?
I use mine for BHO and when fully loaded I get 5 good hits per cartridge
Im using these two the second ones not a pen but I like it more than the pens because its more efficient and i am able to use raw herb as well http://www.smokedoutpipes.com/stok-vap-pro-kit/ , http://www.smokedoutpipes.com/the-da-vinci-vaporizer/