Well after some further review, I believe that I was completely drowning my cartos. Filled one with the 100 PG and......solid. Filled another with 50/50 and.....solid, for what it is. I don't believe that blend will be the sweet spot for me. Got some new juice coming that is 90/10 18 nic and gonna go from there. Need the TH from the 18 I believe.