Nothing beats a great Atty in a tank, either great standard type Atty or re-buildable type Atty in a tank over any carto, period, but as for Cartos in a tank, Boge Cartos seem to work best for me and putting a really nice sized score in the side of them with my dremmel over punching them works much better too, oh ya and the Fusion Carto also works super, ya gotta get the feed of the juice just right though to make a carto work right, to little and you taste filler material burning, to much juice feed and flooding accrues. Scoring them with the dremmel just right works best for me over all the punch techniques out there, practicing different ways with the Dremmel is worth it's weight in gold for using a carto, but I'll take the Atty in the tank every time over the carto , just my personal findings