I was thinking about making the jump from electric to upright. I have been messing around with a frettless and getting used to the no frets. I know the upright is a different story but I am willing to go through with any difficulties. My question being, my sister-in-law is a very good violinist. Would she be a good teacher for bowing technique even though they are different instruments? Some of you will say get a teacher, but she is willing to teach that for free.