Just to get a feel for the effect of hang angle, lengthen the rope by more than you'd likely wind up with, say by 30cm / 12" on one side, or in total split between both. (I like to put marks on my line, giving a measure of how much change I am making.)
Then get back in, turn a bit to one side, stick out a knee and turn your body to a comfortable diagonal.
The tighter the hang --after a point -- the tighter the shoulder squeeze; so substantial relaxation shows you how much freedom from that feeling you can get. On a shorter and narrower hmmk, you'll run out length doing this, but unless you are yourself tall, this limit should not arise soon.