The danger in microbursts is not only the strength of the wind change, but also the speed at which it happens. I had an accident when the wind changed from 020/12 to 200/37 kts in 18 seconds during my t/o run.
The only advice I have:
Do not attempt a t/o when there is an active thunderstorm within 3 miles of the airport and have your finger far out when attempting a landing in the same conditions. Rather wait for the storm to move away.