My juice of choice is a simple Dekang Tobacco which comes at an 80:20 PG:VG ratio; I have never vaped anything with more than 40% VG and even that was a long time ago. But I am expecting my first ever delivery of Boba's Bounty which is known to be a very thick juice, 100% VG according to some, and I want to be sure that my cartos will handle it without any wicking issues. I always use Boge 510D XL cartos without any pre-punched holes and I cut two slots in them using a vertically mounted dremel with the wheel set at the correct height for cutting. The longest part of the process is removing the things from their individual wrappings and then pulling off the condoms from the business end - if you'll pardon the expression. The actual cutting is a matter of seconds. These cartos come in boxes of five and I have dozens of them but usually just slot them one box at a time. So I put on a thicker wheel to make the slots wider than usual and cut five new cartos. Next I wanted to test them so I made up some 100% VG, 12mg juice using the skills(?) from way back when I dabbled with mixing my own. The longest part of that process was digging out the nico stock (VG @ 48mg), some left-over flavour concentrates and, very luckily, an unopened bottle of VG liquid. I didn't care too much about the actual flavour, just wanted something I could vape, so I chucked in a couple of different tobaccos and the dregs from some hazelnut, vanilla and cotton candy bottles, and mixed it all up very thoroughly and let it sit for about an hour.
The results were excellent. I have vaped the test juice at 10 watts on an eVic and 15 watts on a Sigelei for a couple of days now with no problems at all. Amazingly, certainly more by good luck than judgement, the juice is pretty good and makes a pleasant alternative to my all day vape. The pity is that it is unlikely that I'll be able to reproduce it and in any case I'd need to restock on the flavour concentrates. Well, if the Boba's turns out to be as good as many people seem to think then I won't bother. If not, I might just be tempted ...