What's a good cart filler to use with the V2 on a 510 or 801 atty. Currently I am only using a 510 atty with it and dripping but that doesn't work well while driving so I need to use carts for that. Tried the shredded PTB and it can't really keep up with the consumption that the V2 wants with the 510. Not sure how the 801 will be as I've only dripped with it on a PS PT. Any suggestions??
R.F.
R.F.