My D.I.Y. solution for a guitar support

[Doctor7]

Hi all,

After battling with good posture while playing, I came up with a new solution. It works pretty well for me, but might not be for everyone. Please check it out.
It involves drilling a hole for a strap button at the heel cap, but this is the best and easiest solution if you want to cover that later one in a way that is invisible.

I have played for a few hours during three days and felt very comfortable with no discomfort or pain.

I have now replaced the knot by adding a cord lock toggle stopper.
https://freeimage.host/i/HXkqrS2

https://www.youtube.com/watch?v=CMAbsbmRaRQ&t=30s