were if it beads it can dry to quick an cause spotting
The above statement is as inaccurate as they come.
Spotting occurs if you havent rinsed adequately. The speed water will evaporate has nothing to do with it. If the water left on the glass is clean water it can sit there all day long drying or dry in a split second. Its whether theres dirt in the water droplets on the glass that is important.
+1
Water's natural chemical propensity is to absorb dirt, that's what makes it such an effective cleansing agent. The longer the water is on the glass, the more it is absorbing dirt is nonsense. Spotting occurs only if there is dirt present. It is not related at all to the drying time.
In one sense you are correct but.......... pure water will absorb atmospheric particles- the longer the water remains on the glass the more chance this has of happening.
Steady matey...you are stating something that flies in the face of science as we know it 
I'm not arguing at all that atmospheric dust can gather in spots left on windows, of course it can....
so drying time can be an issue in certain conditons,again if I have got the terminology
correct I find in hydrophilic glass gives less problems than hydrophobic, this was
in response to your original post why try to make an hydrophilic response.
Glass drying clean is part of the cleaning process so better the glasses response
to the water including the manner and speed which it dries the less chance
there will be any problems when you walk away.
What was your argument again...talk about keep on knocking and you cant
get in
