Rachel,
This is a very good question. Mine look pretty good, but I'd like more projection, plus it's been 15 years, so I'm well overdue I guess. I'm not looking forward to THAT pain again. I used to know a girl who did sex work and as I recall she went from under to over the muscle when she went larger. They didn't look at all natural to me, but I think the "look" was popular with her clients. Hers were probably saline though, not sure if silicone would have made a difference.