I have spoken to a surgeon via email and discussed 925cc UHP silicone. I currently have 620cc UHP. I am 22, 5'5", 105 lbs. My implants don't look very large on me so I really want to get a bit bigger. I understand that I'll probably have to get another revison in 30 years, bit I really love how they look. I'm wondering what has been your experience with implants this size in your practice? Do they cause back pain? Is it possible to work out back it pain occur? Answers much appreciated!