I changed a year ago, 1st with a trolley (horrible) now backpack (better), soon van mount.
When trad i cleaned glass only (maybe wiped some white sills off), certainly not frames, i wasn't charging enough.
I,m physically more tired (prob due to lugging 25ltr drums around) but can work longer now. My prob with finishing early was boredom. I find scrimming endless leaded windows to be very tiresome, mentally more than anything.
I would only go back to trad if there was a national ban on using the amount of water us WFPolers use.
Oh, and i earn 30-40% more per day now and sometimes even enjoy my work.