I won't be much help but I had FS V4400 for many years, we use the heck out of it and after going through a few rolls of bags I finally just started buying the pre made bags on Amazon. It just makes it so much easier and I'm only sealing 1 time per bag instead of 2. I also have a dry/wet setting but I just visually watch while the air is pulled out and hit the seal button before any moisture gets to the sealing area. When this one stops working I'll strongly considerer replacing it with the same model. It turned out to be a great gift from my wife BFF.