Working on my plan to go to 1600?

I am considering xl implants. From looking at pictures I think I would like to work toward 1600ccs. I am currently a B cup after undergoing a breast reduction. I am scheduled to have 650/700 cc Natrelle Style 45 UHP implants in a couple of weeks. Any advice about the best way to reach my goal would be helpful. My current PS advises that going to 800cc probably isn’t workable now. I'd like to start planning now for my next size. Thinking that tissue expanders might be a good fit. 5'1" 135 36B.

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