I know guys that have been climbing, building, repairing, rigging, and working on high TV and radio towers, in excess of 1500', for over 20 years and have never fallen. Guess wht, they still wear a harness every time up.

The law of averages will eventually catch up. From 10' on up you can break bones. From 20' up death is a possibility. Wear the 4 point harness, it is the only way to go.