pbk917

You were given some good advice here. Clarke's Technical studies are very good. Switching to fingering with your left hand has worked for me in the past. I was taught this by Ed Treutel (former Professor @ Julliard) many years ago. Always remember to be consistent, play at a tempo that will allow you to maintain all notes evenly. Don't overblow on the Clarke stuff, they should be played softly.

Best of luck!