DVap

I don't know the guy behind the subject of this post, so there's no back-scratching going on here, but I'm suitably impressed to enthusiastically endorse his 510 cart mod.

Many cart mods focus on coming up with better filler materials to try to provide better wicking to the atty bridge. Some work better than others but none of them provide what I would personally call a "satisfying result".

Enter SCOTTYBALLS and his "Zero Filler Mod" (ZFM).

Very simply, this mod recognizes that the best wicking cart filler is no filler at all.

The mod uses a silicone plug that fits snugly into the top of filled cart. The plug has a hole cut in the middle that the atty bridge penetrates when installed. A length of straw inside the cart provides a support for the silicone plug to keep it from being pushed down into the cart.

What we end up with is this: The atty bridge is in constant contact with the cart liquid, it does not have to rely on a solid medium to transfer liquid from the cart. You might ask, wouldn't this flood the coil? No, it doesn't. The bridge appears to soak up liquid in equilibrium, once soaked, it acts as a plug.

Here are the advantages as I've experienced them:

1. Consistant and strong vapor.

2. Invulnerable to cart flooding. In my experience, liquid simply does not get sucked in the vapor channels of the mouthpiece.

Then only disadvantage is that you either must pull out the silicone plug to refill or use a syringe. The hole in the silicone plug is just too small for direct filling from your liquid bottle.

I would give the best filler mods a score of 8/10. I give SB's ZFM mod a 9.5/10.

Try it! I cut the plugs myself, but if you're someone who shouldn't be around sharp knives, SB sells pre-cut plugs at a modest price.