Trevor
You are right in what you say and if Mr Lee had said the same then there wouldn't have been any fuss, but he did not, instead he implied that wfp cleaning cannot clean windows with bird muck on it at all.
There are always going to be various levels of cleaning, it would be ideal to get up and close on every window but this cannot happen because of various factors and cost would be the main one.
Wfp cleaning is here to stay and with experience it can clean windows just as good as a trad cleaner, but it not the fault of the "pole" if it doesnt achieve this but the "poler".
The same applies to trad cleaners it not the squeegee's fault when the frames aren't cleaned but it is the operators fault.
Power to the POLE and up the revolution.