1) I noticed that my chain is rubbing against the front derailleur cage when I'm on the largest & smallest cog + smallest chainring (on a double), as well as all the combinations on the largest chainring.
I've fooled around w/ the front derailleur's (Ultegra) limit screws (which are not labelled so I'm not sure which is the low and high...) and I noticed that I could get it to not rub while on Largest Cog + Small Chainring, but then it would still rub when on a higher gear.
I'm sure that the cage is aligned properly, and it's at an appropriate height.
Any tips on how to adjust my front derailleur to stop the rubbing?
2) While adjusting the rear derailleur it still occasionally skips (both up and down) one gear around the middle of the cassette. How can I remedy this? I've been messing around and I think I'm making it worse, and I'm at the point where it's just frustrating.
Of course, I could always bring it to a shop and get them to fix it, but I'd rather save the money and try to learn to do it myself.