Okay, I FINALLY got mine (grumble grumble...USPS...grumble)
BTW, Ben shipped these out WAY fast, so it's not his fault they took longer than expected.
Well, I filled one up about an hour ago, and holy crap it holds a lot. I used V9's Vanilla Vice (good juice, by the way!) and put 37 drops in the condom. My thinking was too much is better than not enough! Well, it took all 37 drops and at the end, juice was barely peeking up through the battery hole. I slowly removed the condom and found that the hole was clear, it was NOT overfilled. Wow.
I have used V4L's premium cartos, so forgive me if it's not welcome here, but I'm comparing with those. Flavor density and vapor production compare favorably, both producing way more than 'standard' cartos. Using a freshly cleaned V4L premium and a new V9 blank, I filled both with the same juice, TV's Atomic Cinnacide. In this case, the v9 made more vapor and had a better TH, as well as holding 4 more drops of juice. I'm not sure if this is because one was a refill, but there you go. I will say that Ben's new blanks work on my passthru, and the V4L premiums do not, possibly due to a technical problem with my PT, but it makes me happy nonetheless.
I talked to Ben on the phone, and he told me that he isn't done making improvements on these, and I'm looking forward to future updates because these are already FANTASTIC. Home run, Ben - well done.
I'd be happy to see more easily removed caps in the future that wouldn't require the boiling trick, but that's just a 'nice to have'. I'd also like the option of ordering color options (LOVE the racing stripe idea, keeping overall black), but again, I can live with it just the way it is.
Thank you Ben, for excellent service and a great product. You can expect more orders from me in the future.
ETA: if you have experience with the V4L premiums, these blanks DO have the same snap, crackle, pop going. Love it.