i get the feeling competition is so fierce in most parts of england, and w/c get frustrated, and you will get w/c who will try and use new ideas to win over new customers, if it works between you and the customers fair doos, 99% of customers dont care how it gets done, they just want them cleaned, i have never had one customer complain about wet windows, millions of work here, and no competition,imo you should be wfp or trad no inbeteen, or you may as well do what wagga does with a wagtail and pole,