A flam diddle. At least that's how we called them when I learned them.
Here's an exercise that without the cheeses it's rather trivial. It took me a while to get this clean at 140 bpm.
Here's the video of me playing if you want to play along.
Attached is the exercise.
Edited by CesarAguirre, 14 July 2018 - 03:30 PM.