I got 700cc uhp now I was wondering if 800cc would be a bigger difference? If it is worth it to later on change to 800cc ?

Thank you for your question.  I don't think you will see a very big difference between the 700cc and 800cc implants.  Maybe a half of a cup larger, but maybe not even that much.  It is completely a personal decision on whether it is worth it to you to undergo the risks of having another surgery for 100cc.  If you would like more information regarding breast augmentation you can download a free copy of my breast augmentation planner at ABetterBreast.com.

Thank you for your question.  The additional volume of 100cc will not make a huge difference.  You may have a subtle volume increase, but already being at 700cc's, the additional volume will not make a huge difference.

Whether or not you will benefit from the use of larger breast implants, will depend on your physical examination and your goals. Of course, the use of 800 cc implants would create a noticeable difference;  the main question is whether it will achieve your goals. Best to communicate your goals carefully with your plastic surgeon; in my practice, the use of goal photographs are very helpful. You may find the attached link, dedicated to larger breast augmentation outcomes helpful to you as you learn more. Best wishes.