Replacing 350cc salines, thinking about going up to 700-800cc silicone, will that be too large on my frame? 5' 9" 150lbs, before initial ba I was a small A cup.
Your are doubling your size or more which means heavier and wider implants. They may be too large for your frame and cause earlier relapse.
Might be, but without in person examination I would guess 600 to 650 might be the max you could handle......