I have been trimming trees with a bucket truck for about 8 years now. had a hyd line go and left me stuck up there. I want to keep a rope with me up there for emergency use to get down. I bought some 5/8 rope at Home Depot but I think is incorrect. I tested using a Blakes hitch and about 5 feet down the rope locked up due to friction heat. What is the best rope and size to use? or other method? again hopefully a one time only usage, thanks for any info you can provide.