Its not crazy to trad the ground floor stuff if you use a backpack on a sacktruck, it makes perfect sense and gives you a bit of variety in a boring repetative job. Personaly I can blade glass quicker than I can pole it correctly at that height. Remember all domestic rounds are different, no 2 are the same and wfp top/ blade ground simlpy works better for some guys. Like myself for example. Not on everything, just on lots of work.