I'm struggling with a good left hand position, and there are multiple things that I'm not sure about. I will concentrate on one particular element here in this question:
What one usually reads (which makes sense) is that the hand should ideally be in a relaxed middle position, like the following graphic indicates:
However, it seems that for playing the lower frets on a bass, I don't have an option other than bending my wrist, especially if my thumb is placed adjacent to the index finger, as (for example) the following video of a big music educator suggests. I have also added a screenshot from the video. I see bends like this regularly on youtube, and I was wondering - Is that level of bentness ok?
To be specific, by bentness I only mean the flexion of the hand here, not the radial or ulnar deviations - those are separate topics that I want to cover in another question.