Agreed. Mr. Goldsby’s explaining is beautifully thorough as always.Thank You, John!
Yes - RELAXED is a great term to describe it, as opposed to "light".
Not to sound like a broken record, but that’s why even just basic practice with the bow is so hopeful. The strings have an optimal frequency they want to vibrate at, and it’s our job as the player to give the string the energy it needs. I often teach my beginning students how to under and over bow so they can feel and hear what that sounds like compared to relaxed but strong bow stroke. It’s a good practice to bring over to our pizzicato practice too so we can understand the variety of dynamic levels we can produce. Relaxed and strong wins everyday over digging in for me.