Help with Guitar posture

[Tbushell]

If you want to explore all the options - including using a strap - check out this topic:

Sitting position, slight difference that makes a difference?

Just a quick thought that I had today. I have been having a hard time with feeling like both of my hands and arms are not in quite the correct positioning, especially on my big acoustic, and I haven’t been able to figure out why. I’d reposition the guitar over my thigh, further to my right in order to make my wrist more comfortable. Firstly, the guitar would work its way back to the front of me (which is annoying), or secondly, it would try to rotate downward over the outside of my thigh so that…

Long thread, but a quick scroll will show many pictures that should be helpful.