In the personal experience within my house, my wife (who takes deep and straight to the lung draws) was able to flood any carto-
tank that I put in front of her. The XXXL and Mega cartos? Not so much, but it was a matter of not oversaturating the polyfill so that her draw-method didn't have excess liquid to pull from the fill into the coil-space.
The workaround/solution (for her) was to go to a dual-top-coil clearomizer (the iClear 30
S, emphasis on the S-variant). So far, no matter how deeply she draws, the design and wicking method prevent her from getting any gurgling or flooding. She likes the pivoting head, but wasn't a fan of metal (tends to hit her teeth and the reaction was not pleasant, almost like a visit to the dentist) so we stretched one of the rubber tips from those old Mega cartos over that tip and while it looks a little odd, it "works for her".
Additionally, I can treat the cartridges just like my cartos when it comes to cleaning and recycling them.