This topic is pointless, wfp guys will always use the ladder safety argument, and trad guys will also use the cost the supposed overheads of wfp and the apparent bad results it gives.
But in reality a good wfp'ers knows that it will give better results in most cases if cleaned correctly, and as for the overheads, I put £10 aside per month and that covers me for when I need resin or new filters.
As for ladders, they have there place and if used with some common sence, can be safe to a degree, and most wfp'ers probably carry ladders as there are times when they are needed, so that can't be that dangerous.
In conclusion, 99.9% of wfp guys wouldn't revert back to trad, and 99.9% of trad guys will never admit that wfp is safer and does a better job, as for wanting to see the glass, the personal touch, finished result rubbish, that is all excuses as far as I'm concerned, it's only cleaning windows, it's not an art form, it's a means to an end. I couldn't careless about seeing the end result, I am confident in my cleaning and that I can walk away knowing i have done a good job.
Anyway like I said that is a pointless topic, wfp'ers will agree with me, trad guys won't and it will never change.