I made my first code-name "Spacely Space Sprocket Heatsink" and it is working great. Senkat diode running at 320 mA used to get hot in about 30 seconds is now barely warm after a minute or even longer. Took a heatsink I found on an old server CPU board, ground it down and drilled a hole to fit around the Aixiz module, and used Thermal Epoxy to glue it in place.