I'm curious if neck angle makes any difference.
Of course it does.
You can see in my avatar pic how I hold my bass
Probably around 45 degrees but It wiggles
Why is important: Ergonomic efficiency and safety
To keep my left wrist more or less straight
To allow my fore arm to meet the neck at something close to a right angle
This reduces unnecessary wrist strain and allows more shoulder and arm strength to contribute to fretting pressure
So I
don't have to use thumb grip and 'finger strength' to fret my notes
Now English is poor for communicating orientations 3D space
So let me describe what I mean by a "straight left wrist":
Hold you left arm and hand out, palm down in front of you, as straight as possible. Sorta like a 'superman flight pose.
relax your wrist , letting your fingers droop a bit.
For me this is about a 35-45 degree angle.
This the wrist break angle I try to maintain
This downward bend is called
wrist flexion
It's comfortable and doesn't strain my tendons.
Now straighten back out, palm down and rotate your wrist to point your hand/palm/fingers to each side. This side bend is called
wrist abduction.
Notice how much strain it puts on your wrist.
When I say or I keep my wrists "mostly straight" , it's to
- allow a little wrist flexion
- avoid wrist abduction
My bass height and neck angle serves that goal.
My bass is also slung at a height that lets me keep my
right wrist mostly straight as well.