Thanks for this list it should be a compulsory part of the learning process for all instruments and integrated into the exam process. I wonder how many teachers ever include this knowledge with young students.
Thanks for sharing. I think there's a lot of good advice there. I have really found out myself that having a break in every 20 minutes makes practicing much more efficient. After the break my playing is almost always better than before it.
Relearning Sors study in D Minor reminded me of a problem I encountered a few years back which was the beginnings of curled up 'a' finger syndrome - I don't know the proper terminology for this. I identified the problem as being the 'a' finger being used for extended periods as a mere hammer on the string. My cure was to mix in some a-m-a...practice on adjacent strings using rest strokes, and a-m-a scale practice, which gave the 'a' finger a greater range of motion.