Yup, me too. Wish I'd read about the blue foam mod first! After packing 2 empty carts with the teabag mod, I found the bag material got hard and I couldn't top off by noon today (probably too much packing). Also, I was getting a strong paper taste since I didn't use the nylon teabag.
Made a trip to Petsmart on my lunch hour and snagged the very last package of blue foam! Followed the directions from the other thread (after washing really, really well) and it works great!
Vaping for just over a month now and the cart issue was getting to be a real drag (no pun intended)!

Will give it a couple of days to decide for sure, but I think this may be the best solution yet.