I use a retractable dog leash to pull up my bow.
I use the end of my rappel rope to lower my bow.
I use the dog leash to pull down my rappel rope.
I use a section of 1” tubular webbing on my rappel rope.
The beauty of the dog leash (or Doyle’s) for pulling up your bow and pulling down your rappel rope is the leash/Doyle’s is attached to you going up and down so it follows the same path as you and doesn’t get hung up in limbs pulling up your bow or pulling down your rappel rope.
The beauty of the 1” tubular webbing is it protects your rappel rope from the tree bark, it quickly gets fuzzy and helps hold the rappel rope in place (not enough to overcome a delta link though) AND it allows the rappel rope to slide easily through so it’s easy to pull the rope through to release it.
The ONLY time I have EVER had an issue getting my rappel rope down is when I forgot to attach the dog leash to my delta link.
That’s not the best example as I’m only 6’ off the ground in a tiny tree on top of a bench overlooking a creek bottom, but it shows the tubular webbing well.