I worked at an MMDS video provider in the 90's, I put up a ton of 1-2 hundred foot towers all over northeast ohio the highest I climbed was 1250 feet in Parma Ohio. Its not all that bad unless its cold, then it really sucks. I came off once, I was only 15 feet up lost my footing while free climbing, ruptured 4 discs cracked 1 vertebra and blew out my knee I was just high enough to get hurt. When I first started I was on a small 11 inch face tower @ 75 feet when our guy wires fell into power, I woke up hanging from my belt arms killing me my mouth tasted like I ate a bunch of pennies and I had a couple burns on my hands and foot where the power blew through my boot. Those were the only two issues I ever had in 8 years of doing it. Most the stuff I did were the small 11-14 inch face towers 1-2 hundred feet, they were bad because you free climbed till you got to the equipment most the bigger stuff had the fall lines and cages. I dont think my knees or hands could handle it now I was pretty buff then lol.