I like that you get an extra sound during the frap as compared to a flap, it’s also a good challenge.
Tip: Slurring the riff sounds together is and issue with this one. Add more pressure to the first sound (when going slow-medium) and/or approach the riff with a steeper angle to the floor.
Frap Cramp Roll = frap-cr
Tap Dance Move Shown by Rod Howell
