Been using the universal brush for 2 weeks now. Absolutely love it!
It’s been used on everything, 1st cleans, regulars, upvc, ali, wooden etc and no problems at all.
A brief adjustment to technique when there’s brick reveals to the windows to stop the side bristles rubbing. But they are great bumpers for protecting upvc reveals and cills.
In my opinion having the extra bristles when compared to the extremes outweighs the lightness by making it easier to scrub the dirt away. Think it will be my go to brush for now.