I transitioned after 14 yrs trad onto wfp june of last yr. It was a steap learning curve, of research n watching many videos (I personally liked perry on future of cleaning) and then shifted through bad advice. Then the practice came in. I was like a complete novice again, having to relearn the windows (hydrophobic etc, bad seals, oils etc etc). My smallest stretch normally took me less than a day, took ne 2 days to do!! It was painful, but ive finally perfected my technique and it takes no time at all now. I now kno all my problem areas and fixes for them. I really begrudge getting ladders off!!
Stick at it and go thru this pain barrier, as sometimes (most of time!) Its down to the technique and rinsing. But this you will soon learn, esp as u said u dont mind the effort.