I use the Thirdhand bow holder on my climber - I even climb with my bow in the holder ( bow holder turned so bow string is horizonal) , once up the bow holder is turned so the bow is upright and tilting forward.
I had tried a bunch of other bow holders that were too wobbly for me to feel comfortable to use - I was always worried that it was possible to bump the bow off, may be a little paranoid - I had friends who used those bow holders at the time.
In my experience the Thirdman bow holder is much better than any other I have seen and is in league of its own.
It is an example of a simple, well made product that works extremally well at a very reasonable price.