Scottyballs: this mod totally rocks! I just saw this thread tonight, and made 4 510 carts. No leaks, and about the best vaping I've had with this PV. I'm using straw and 510 condom cut with ~2 mm diamond hole in center. If the edges are tight against the cart wall all round, you can tap it upside down on a hard surface and there is no liquid dripping. And the hole is open all the time, not just pushed open by the bridge. Combo of high surface tension and no 2nd hole for air flow back in. Atty does not get flooded either. Just amazing.
Only concern is possible plasticizers, but if it is high-temp silicone, then I am guessing there should not be any. This is only a guess. I did a google on "silicone plasticizers" but couldn't find anything that said they were used in membranes, which is what this probably is. But it is a soft material, and in rubber chemistry that used to mean addition of plasticizers...don't know a lot about silicone rubber chemistry. But hey, compared to the probably pounds of plasticizers in all the plastic cups I've ever used and the like, it hardly matters.
Once again, my 510 is far better than it was yesterday, and it was excellent then! I'm using a syringe for loading, but one can drip onto the hole and pop the air bubbles when they come up. Or of course remove the plug and add then put the plug back. It did take a bit to get them just the right size, but when they work, wow do they!




