Running out of my dong ding, it has maybe one or two more chances on the table. Had some more today, and stuck with my inclination to let the leaves steep longer than I would with most other oolongs. In my opinion the longer steepings round out the flavor profile and make for a better cup. Started with ~40 seconds, and ramped up from there.
195 °F / 90 °C 0 min, 45 sec