I've always done trebles since I was 18 and that's 4 years with no problems, but I never ever take risks, I'm not in a rush to fall off! I don't do it on windy days as I said etc, but I'm now going to charge 20 quid no matter what, I can't afford wfp, and right now I'm happy with trad, till I build up a solid round, my work mate and I do 4 blocks of flats each 3 stories and we've always been fine, it's probably down to how safe you make it, nothing has changed over the years, ladders are safer and why suddenly worry now? Its only since wfp has been used that everyone now worries, but I find customers like that I'm at the window rather than using a brush from 25ft away, so for now it's my only way, but I will definatley look into wfp in the future. As for insurnace all I know is were insured up to 30ft, and the flats we do needed to see the forms and they found no problem, so it's all good, also we got that job because the windies before were wfp, and they couldn't do a good enough job (for whatever reason) so we got the call and they been pleased since.