[Immaculate windows]

Anybody else had problems with not being able to remove them?
I have a clx18 and an slx22, had both poles over a year now, but the goosenecks are as good as impossible to remove to swap over, almost as if they are araldited in, so when i want to change brush it is a case of unscrewing the angle joint and swapping over there, which is ok but not as convenient as swapping as they should