well i tried to get on with it, it just does not work for me, it leaves smears behind every time, today i had a whole house to do inside, the sun was blasting at these windows, so thought i would put gg3 to the real test, had the solution ready in a spray bottle. covered the washer and scrubbed the glass, because the glass was hot, i hurried fast as i could but the heat evaporated the solution before i could finish blading of. it left real bad smears, i honestly just could not get the glass clear, lucky i had fairy with me, had to change every thing, restarted the cleaning, and guess what, they all turn out perfect every time, and did not dry out so quickly, reason why i used gg3 was because they say it stays wetter for longer, so thought this situation was perfect to use this stuff, ok i wont blame gg3 i think it was the mixture, pity it was not ready mixed to the right proportion, how do you mix your gg3 or 4, for the record i did use pure water with it