i,ve just tried both these products after years of fairy liquid and find them quite good, i've only tried them each for a few days. i find that on some glass the unger can smear quite bad but then work perfect on the next window.the gg3 works good too but at the recommended dilution does not give enough glide, upped the concentrate and is much better.
just wondered what your oppinions are on these (proffesional) liquids and if you have any tips for me i.e.- dilution ratios, sqeegee pressure etc, to may-be save me going through a longer trial and error period.
thanks
tony