gearadcon thanks for mentioning the membrane wearing down thing. i'm new to carts but love them and have also noticed after several hours of steady going the fantom carts tend to have less punch if that makes sense? i tried the NATS carts but found they lack consistency in a couple areas. i ordered some gear from TS last night so i can try it this weekend when i hit the shop. thanks for the topic i'm learning alot again and its fun

namaste