Originally Posted by
tjspiel
Good to know that I'm not being an idiot.
If you've got to break out the chain tool it's probably not worth it but if you've got a power link (or equivalent) you might as well give your chain a good cleaning while you make your adjustments.
Still seems like a bunch of unnecessary work. I've never had to do this before and I've adjusted lots of rear derailleurs. When you move your chain into a cog and it's not lined up correctly, you'll know pretty quickly. Same for high/low adjustment. If you have adjusted the limiter screws too far, the chain wants to pop off the cassette.