Hi guys! So I have a bit of a dilemma. I just started with my first real bass teacher who happens to be great. He writes music for tv and film, been in successful bands, has degrees in music, plays bass, fretless, guitar, piano, sings, etc. He's also one of the most expensive tutors in Sydney. With that in mind I went to my first lesson and got mixed advice. I have been playing bass since I started by placing my thumb on the string above the one I'm playing, like on the right in this picture. This allows me to easily pluck the stings with the fleshy part of my finger and keep my wrist from being bent - which I have read can cause injury. My teacher said that I should be anchoring my thumb on the pickup and causing a sharp angle in my wrist to reach the G. I brought up the issue but he said it doesn't cause injury. He also said that my shoulder will tire and it's better to play his way. This guy seems like an amazing teacher besides this one thing. What should I do? It doesn't seem like he will let me play with my thumb on the strings.