hi jaclaz, thanks for your reply.
I am actually using the conv rollup KB3125574. That's what brought to light for me, all the superseded updates. I got the list of updates it replaces, and removed them from my patch repo.
What I want to do now is check to see if any of the remaining updates I have in the repo are superseded, possibly by a newer update that I also have in the repo. Main goal is to reduce as much as possible, the number of updates I am integrating. I noticed that after I integrated KB3125574, and did not integrate all the updates it replaces, Windows Update performance is drastically improved. So I want to see if there's any more updates I can nix to further speed it up.
Thanks!