I'm not sure if this will be of any use to you guys, but this video and check pattern exercise sheet (below) from Tommy Igoe, has really helped me to improve my Single and Double Stroke Roll practice over the past 2 weeks, especially in regards to getting to grips with my rebounds, equal velocities and stick heights, when playing both the Single and Double Stroke Roll rudiments.
At my drum lesson last week, my drum teacher said that he was really impressed with the speed that I have improved my Single and Double Stroke Roll technique, inclusive of my rebounds and stick heights.
With this in mind, I just thought that this particular exercise may be worth sharing with those of you who are trying to improve the speed and quality of your singles and doubles when playing.
Like all rudiments though guys, it's down to you yourself to be self disaplined, start off at a slow comfortable bpm, and ensure that you are playing everything correctly, before bumping up your bpm's and "put the effort in" to see the improvements in your playing.
The way I have been doing this, is to play each exercise for 2 mins, and then if I have absolutely nailed it, and I am playing everything correctly, bump it up by 5 bpm, this seems to work for me, but for some people, an increas of 5 bpm each time may be a little bit too much, so if this is the case, just creep your bpm up by 1 or 2 bpms for each 2 min exercise.
And remember........alternate between Right Hand lead and Left Hand lead.........get those sticks up nice and high!!
These 2 exercises are also explained on the below check patterns exercise sheet......enjoy