My dad was a climber most of his life and trained me as a "brush monkey" first, then as a climber. I only worked for him and his company on weekends and during the summers while I was in highschool, so I never got to be a great climber. I did become a pretty decent groundman, however, and anyone who has worked for his dad knows he's harder on you than anyone else on the crew.
I'm now 63 and we just started using chippers when I left the business...we loaded all the brush and hauled it to a dump. In my day, I was a pretty good loader and could swing a pretty mean machete. As anyone who has loaded knows, the load has to be far enough forward to keep it from being lost on the freeway, but far enough back to make it easy to unload by backing up fast and hitting the brakes. My dad was not happy if he had to make more than one run backwards to unload brush from the truck.
Sorry for being so long-winded...us old guys do that.