Hey Graybeard!
I see you're from SoCal too. We don't have many microbursts around here, but we still get our share of windshear don't we? Nothing like Burbank or Ontario for a good time when the Santa Anas get spooled up. A bit ironic that the only place I ever had to hold for a windshear warning was at DFW. A big +CB right over the airport. Being familiar with the DAL 191 accident made the wait seem prudent and not even an inconvenience.
And thanks for bringing up the RADAR predictive feature. That function is yet another tool in the bag.