I totally agree. I did a couple summers at Orford with Joel Quarrington, and if I could distill the vast, vast majority of his advice about bass playing down into one concept it would be something like - Remember all those things your teacher told you to do in your first lessons? Good posture, good left-hand technique, use your big muscles wherever possible, don't squeeze, don't press with the bow, etc etc etc? Yeah, do those things. That philosophy got me through a master's degree where for the first year I was unable to practice more than an hour or two a day (or not at all if we had an orchestral rehearsal because I had to save my hands for that).