The x line flocked brush is far far better than any gardiner brush , I have been using super light for years but alway felt they didn't last long. They feel very cheap to use compared to the x line
I have to echo this. I bought a flocked and a mono. Always used the Gardiner extreme brushes but also bought the supreme, again one of each, when they came out.
The extreme are so light but wear too quickly, l was buying a flocked every month.
The supreme again were ok but I did not think they cleaned any better than the extreme, just heavier.
Xline seem to have slightly longer bristles and defo feel different/better on the glass. Heavier, yes. But quicker to use, it that makes sense.
I will try one of his poles when I need to replace mine.
Tony