...just got myself a chain connecting tool (the shimano TL-CN27) to try and fix chain slap by removing a link or two. Problem is I have never done this before and I'm an awful mechanic... * Chain is a brand-new Dura-Ace 10 Speed (when put on, I had a 11-28T cassette and my LBS had to make the chain longer - however, I'm no longer needing this wide-range cassette and reverted back to a standard 12-25T cassette. The chain is now too long and causing annoying chain slap over rougher parts in the road surface) * My big question is, where do I start with the "cutting"? Must I start with the "master link" and if so, do I need the chain connecting tool for that? Somewhere I read that you have to use pliers and apply force to the links on either side of the master link making sure it is on top of a loop...a bit confused here.