I got everything apart today, yes lots of screws. Maybe it's just me but I don't see how it actually seals. Water drips in right around the screws. Doesn't seem right to me to have no sealant under the rubber. Otherwise the boot looks good. I was thinking of covering all the top and side screw heads with some sort of sealant.
I did that today in hopes it would fix it. Just doesn't seem like a solid lasting option though. Those screws will come loose again soon.
Hearing they stayed tight for you gives me hope. It's just I saw a little sealant under there when I was looking around. I think the previous owner may have had an issue as well. I'll keep and eye on it. So far so good!
Some of the screws were stripped so I had to use new ones that were larger in diameter. Decided to do all of them. If it leaks now, then something else is going on.