Aggressive pick up. At UAL, while reserves aren't allowed to pick up trips on our days off, we're (thank heavens) allowed to pick up open time trips on our reserve days, based on seniority. We can pick up trips (only in our domicile) that match our days of availability, or days minus one (for example, a reserve pilot with 4 days of avails can pick up a 4-day or a 3-day.)

This makes reserve a lot more palatable for commuters. If you're going to slog across the country for a reserve shift, it's vastly better (IMO) to be out flying, rather than sitting around some crashpad hoping to get called.

It isn't anywhere near as flexible as, say, SWA's reserve schedule adjustment tools, but it's a heck of a lot better than I'm used to at my previous carrier (OO)...