This is going to sound really stupid, but it is the answer both in practical terms( it works, takes no time up, releases quickly when you need the hose to extend the pole, and doesn't introduce kinks or twists into the hose) and is also a very elegant mathematical solution. I will probably have to post a photo but I will try and explain.
Get some plastic pipe, say inche and half diameter, four inches long. You need three bits, tape them together like a honeycombe and tape this on the reel hose near the hose tap. What you do is work on loops.
When you have a lot of excess pole hose you put one loop down one pipe, and another down the second, and any remaining down the third. This hangs down in three loops loose by the side of your body as you work. It is a very fast method of either securing the pole hose off the ground or releasing it quickly. No twisting is introduced and no tangles ensue.
My idea for a product would be to have a harness and the honeycombe attachment as a perfect van mount working solution.