Advice for a novice. Can any of you out there tell me if I should remove one more link in my chain? I recently went from 12-30 cassette to 11-28. When I got home from LBS in noticed in the small - small combination the chain was laying on the chain stay. I have already shortened by 1 link (actually 2 to make the power lock work) but just don't know if I should take one more out. This novice old guy would greatly appreciate any advice. Thanks!