I cant use anything but moreman liquidators they are brilliant....
had a 14 fliquidator for a while but last week I bought a 10" channel for some 16"x12" windows I have inside a pub, tons of them!
The best damn tenner I spent in ages, it cut the job in half. Not exaggerating here, instead of straight pulls and detailing them all taking an hour I just fanned them without the detailing in half an hour.
I also bought an extreme pole from gardiner's for a lot more than a tenner, I bet that doesn't cut the time on any jobs in half.