As a Cleveland Orchestra junkie and former student of Kevin Switalski, Assistant Principal at the CO, I was quite excited when Farin Hoover posted these warmups on Talkbass.
They are extremely time consuming and difficult, but well worth the effort. In the beginning, I recommend you take one warmup per day, until you’ve conditioned yourself to play the whole thing. I’m not there yet and they sure don’t sound musical or delicate under my fingers, but they’re a great conditioning exercise leading up to school.