There are some
threads about tips, but I would cut a V at the bottom of the straw to help it not get stuck to the bottom of the bottle, wrap a piece of tape around the battery so it's easier to take out, I use duct tape and it completely eliminates any door rattle, and maybe use a small wick. A smaller wick will increase air flow, and you don't want to cover the squonk hole or
juice will not go back down. I keep my wick almost flush with the coil on the squonk hole side, and 3-4 mm on the other. I squonk every 5 hits. Also some fluids can embed themselves in the plastic. I have one Reo for H1N1 and the other for bakery. I have 2 more on the way, one will be dedicated to fruit. Certain juices will linger, I had some watermelon get all up in my tubes and it lingered for awhile.