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.