The flam drag is a unique drum rudiment that alternates flams and drags within the structure of an alternating double stroke roll. With all these unique elements combined, this rudiment becomes a powerful exercise for developing flam strokes, drags, and overall hand coordination.
If you look closely above, you’ll notice that when you ignore the extra flam and drag strokes – the pattern is just a simple alternating double stroke roll. The first stroke of each double is replaced with a flam, and the second is replaced by a drag. That’s really all there is to it. Work through it slowly at first, and it will come together.