Don't go any larger since you are starting to bottom out from the weight that you now have. You can try changing them to a higher profile and use mesh for internal support. Larger implants will sag down even more over time.
I would suggest going with the large 220 cc implants because of your pocket size. Your pocket can be tightened internally laterally to help, but your current implant has also stretched your pocket anteriorly. there will be less loose skin with the 220 size than with the smaller implant, and...
