Originally Posted by SpammersAreScum

All available data points show that using TYPs sometimes triggers distance-based special fares use; maybe even most of the time, but definitely not always. There have been a couple reports for Amex, showing mixed results; not sure about Chase UR.

There are also indications that a ticket re-issue, for whatever reason, often triggers it. So you could try to improve your odds by getting an SDFC, for example.