If microfibre is so fast are you going to throw away your squeegee?
No, of course you are not!
And I will lay a pound to a penny that if looked at properly the squeegee work you did will have had not smears at all, but in direct sunlight, even allowing for the lead missdirecting your eyes, there will be smears.
Atthis point I'm going to tar just about every window cleaner with the same brush and have everyone spluttering indignantly, so apologies for being contentious!!
All work done with a cloth will leave smears.
It may look spotless, and you may well have done a top job, but if the sun is at the right angle those smears will show (if you know how to look for them)
Don't forget, I use this method of cleaning on a lot of work, and anyone who has seen my work (squeaky included) will tell you I am a good window cleaner, and I'm fussy too.
But if you are rubbing the glass with a cloth (of any description) Get the light right and you will see.
The point I am trying to highlight is that if you are racing against yourself, with spray and microfibre you can go like the clappers but it won't mean your job is inch perfect.
You will of course deny this, 'My job was perfect when I finished it' you may say, but it won't be.
With the squeegee you follow a technique, the whole of the pane is cleaned, and detailed as required, you have to blade all of the water off the glass.
I'm not going to dispute Roger's timing, I believe him, and I'm quite sure he would happily duplicate his results if challenged, and I'm equally sure he did a good job too.
That isn't to say I couldn't find errors mind
A standard casement window is one small opening light, one tall opening pane to the one side and one fixed pane below the opening light.
This is the standard window, and it will take the average window cleaner 90 seconds to clean it,always has and always will.
You want to treat the window as a challenge, treat it as a race and you will of course do it far faster.
As we all know, Turbo Terry Burrows can do 3 single pane windows including the sills in under 10 seconds, thats what racing is all about.
The windows that Rog is talking about are easier to do than the tradition standard casement window, whether with a squeegee or microfibre.
But all I have said holds good, 90 seconds per standard casement window for the average window cleaner.
30 seconds for WFP
Providing you have done the job correctly the one thing you will not get with WFP is smears, and you WILL be quicker, and in that I am still talking about what Mr Average can achieve.
You cannot go at race speed all day long and do a top quality job, quite apart from which you will be shattered at the end of the day.
Roger bleats on time and time again about how crap WFP is, he is very, very wrong, done properly it does every bit as good a job as trad and it is quicker, on some work the difference is staggeringly large.
And the bigger the job the bigger the difference in time taken.
An average window cleaner will be quicker on most jobs than a fast window cleaner if he is using WFP.
But you must also remember that it still takes a few months to hone and develop your skill with WFP, in that respect it is no different to Trad window cleaning.
A newbie at WFP will be slow and clumsy, just to become 'average' takes time and effort regardless of which method you use.
And being an average window cleaner does not mean you are a 'WORSE' window cleaner than an above average one.
Merely that in time taken to do a job to a high standard you manage to do this in what is considered the average time it should take you once you have achieved a high level of competency.
My missus is shouting at me..gotta go

Sigh, oh dear, I seethat while I have been typing this, 11 other replies have been made!
and most of them I'm going to have to delete guys.
Nothing wrong with Roger's post if it causes debate, but keep to a debate and not simply smart comments to snicker at
Ian