^I only read page 1, and then posted. I didn't see the "fix" on page 2 with the bolt.
You for sure want an o-ring under the bolt head. If your not using the stock bolt...then you might want a bigger slightly beefier o-ring in there to fill up the space. It wont leak out...but it will seep out when it gets warm. You can always tell when you need a o-ring replacement.
~F~