Originally Posted by Sy Reene

Actually, I'm curious on what the consensus is regarding shifting frequency, reliance on fewer rear cogs, or not shifting much at all, and how there's an impact on chain or cassette wear.
For example, a flatlander Floridian.. who, once they're up to speed and cruising their ride in a pretty narrow range, are they experiencing the longest chain life, but the shortest cassette life (less shifting, but most of the miles are spent in 1-2 of the rear cogs). OTOH, someone doing a lot of shifting, using a lot of gears -- does this mean more wear on chain, but much more even distribution of wear on the cassette's cogs?