Craig,
I think biggest problem with gg4 is lack of squeegee glide, that is why I change my rubber daily. When the rubber has been used a while and starts to dull the squeegee sticks. I use a new piece a day and turn it round half way through. You may be able to use it straight away but might need to persevere,it is worth it.
Have a look at Titans website (Karlos has put adress above) and theres a section on squeegee drag.
Gerry.