Is the filling in these new carts over stuffed though? It seems like I am topping off after every 10 puffs or so, then the filling looks bone dry again. But then I put a drop, maybe too, very rarely 3 or 4 and it pools up. My only guess is too much filling so it can't drain to the bottom or fill to the top.
Lich - The poly filling can become saturated at the top and not wick well. It also can be too much polyfill (I still have a tendency to over stuff carts, what a PIA to do new filling!!).
When mine get like that, I pull out the filling and separate it back out (I use a sewing seam ripper, it is sharp and pulls through the filling great and has a cap or use a large needle or paper clip bent out to a wire).
If I feel like it is too much polyfill in the cart (usually me putting in too much), I'll cut a side off of it and fluff out. Usually works fine. I think most of us should probably put in clean polyfill more often, but then I'm lazy about it! ha.
Most factory stuffed carts are just right (it is a good thing to pull the dry stuffing out of one before filling, and take a good look at just how small a piece it is and cut lots of refilling replacements by eyeballing the size of it then they'll be ready to go when you need to have some!). I buy the roll of polyfill batting from a craft shop rather than the loose polyfill in a bag. Easy to cut new pieces then.
A small glass dropper can force liquid down into an air pocket. I purchased some small bottles in a shop locally that hold 1 dram and they are great. LorAnn extracts sells them for their extract products (and you can use the little glass bottles for juice when you are done with the flavoring). They're perfect!
You can also find them here
1 Dram Clear Glass Vial w/ Dropper - 1drm DROPPER
These small glass droppers also come in handy to suck the e-liquid out of the polyfill in a cart that needs to be refilled with new filling (just push all the polyfill down into the bottom of the cart with the tip and suck out the juice). Then you can just use the dropper to put the liquid back into a newly stuffed cart.