I decided to try a dry run. It went in on the second try (my grip slipped on the first try and it popped open too soon).
As soon as it was in it felt like it wasn't there! I was thrilled. I left it in there for a few hours and couldn't even feel it.
It went really well, and I got it back out on the first try! AMAZING! If this thing works as well as it is comfortable I'll be set for life.