A couple of breakthroughs!:
I learned the value of frets on a violin.
Guaranteed playing in tune ~ especially valuable when performing with a rock band and you can’t even hear yourself.
A visual template for the spatially impaired (like yours truly Violin Bitch), which helps orienting when improvising and composing.
Finger patterns become relevant with a background or grid to follow.
I just unlocked the door that’s been holding me back. I knew it!!
Don’t yet have a fretted violin, BUT I found some that can be added to an existing fingerboard. Ordered, anticipating receipt!