Sorry no pics. But I could take a pic of the blisters on my thumbs! Just kidding there, but I could tell another hour or two and I would have had blisters. I was going to try the hot water method to soften the rubber, but with it getting cold outside I decided to keep things dry and go with the heat gun instead.
I had one section (transom left) that I had to redo it as there were two sets of holes originally on the boat and on the rail, one that was a bit crooked which I accidently used to reattach and it was slanted. I bet it was a goof from day one. That said, it took a stiff putty knife to separate things (after drilling out the new rivets) to redo it so it gave me confidence that the silicone really adds some sturdiness to the rub rail attachment. Originally I was just going with rivets and silicone to save $ over 100+ stainless screws/nuts, but I'm glad it looks like it's going to work out even better.