To run a professional business you don't have to be just Wfp or just trad, you have to use both.
It's horses for course and that's a fact trad can't go three stories, can't go above conservatives, so the windows are left and ladders are banned from construction sites and a lot of businesses won't allow ladders.
Wfp can't do insides and better to shop fronts trad.
At the end of the day we are window cleaners and to be a safe and professional company you select the correct equiptment to do the right job, so be it if it's a squeegee, ladder or Wfp,