when i changed over i did the upstairs with WFP and the down still trad
this worked very well, the customer didnt have the shock of the life, they got used to the new system, when doing it WFP upstairs i used to use 150 L a day at most on my domestic work
i then started to use it on conserv's as i sold it cleans the frames aswell
i have since changed over to WFP it all, why ? ? ? ? just plain laziness, its easier and you dont have to think too much
have my earnings increased, when i went from 100 % trad to 50 / 50 it didnt really increase much ( 10 % at a guess ), its increased now that i am 100 % by another 10 % nothing much really
would i go back to trad downstairs, YES i would, the customer prefer it, you leave the windows clean and dry
i now use 250 - 300 L a day
on your last few cleans trad, give the tops of the frames a really good clean, you will be half way to a good job even then