Finally, you'll get to the point that you'll actually bounce the stick. Keep control of the last two double strokes with the wrist. These exercises will not only help you learn the Dragadiddle, but will also point out several of the common mistakes that drummers make when they are working on them. If you want to keep an exact 32nd note interpretation on the drag in this exercise, you'll need to experiment with the amount of pressure that you place on the fulcrum. A strong accent requires a more relaxed fulcrum than a soft note because of the velocity of the stroke.
Fast tempos require a tight fulcrum because of the speed of the double.
This is a fairly easy exercise to work up, but I want to point out another common flaw that drummers make on the Dragadiddle. If you don't control the placement of each of these strokes, you'll wind up with uneven 16ths. Or worse, you'll fudge the diddle and the double stroke until they sound similar in their spacing. Remember, play the first measure in the same style that you want from the second. Finally, listen to the evenness of the 16th note base as you move from measure one to two.