ORIGINAL: YooperMike
I leave mine on the ground, attached to a retractable hoist. Use the hoist for getting the bow, but also for height checking. Have a couple marks on the rope, and when it stops, I'm at 30'.
I used a retractable hoist but found it to be too noisy. I've reverted back to a pull up rope (cord) and I have tied small knots in it every 10ft and it is also 30ft. The highest I typically go is 25ft though.