Bridge - I only do recent posts so I read nearly all the recent posts that I have not yet read, it doesn't matter the section. I don't even notice sections really.
I just hit the recent posts and go back to the last posts that I viewed. I don't comment but view about 99% of the threads so it's easy to see where I left off. If I'm not on for a while I have to go back to the 2nd and sometimes 3rd page but I check em all out.