It' s not the heights its the climb that used to get to me. I say used to get to me since over the past two years at my summer job i worked kind of high. I work for the Park District and we have to change light bulbs or cross arms on light poles for baseball fields just about every year. we rent a lift with a cage just big enough for two people. One field isnt bad only about 40 feet up, the other field is awesome, about 65 to 70 feet up, the view is awesome too! So, I' m not too worried about being 10-20 feet up.