I have had a consultation and was recommended 350cc Mentor memory gel round high profile implants. I was told that are then 2 options and I could chose to have either cohesive I or cohesive II. He recommended the cohesive II - but they are more expensive. I understand II are firmer than I, is this beneficial? Which feel more realistic? Does one perform better than the other? What are the benefits of II over I? Is worth the extra money? Thanks.