When I started out, I used an SLX22, carbon gooseneck and Gardiners standard sill brush; what a lovely combination that was.
But then...depression set in, along with 'Tennis Elbow' and despite all my best efforts to find a cure, the only temporary relief, was to spend time with my friend 'Jack Daniels'.
Happy days are here again now with Xtreme poles and brushes (and no more pain).
First cleans, Xtreme stiff and some chemicals, never a problem and fairly quick. 8 weekly maintenance cleans, Xtreme with the tapertec bristles (very clever brush). Diamond lead, the new Xtreme flocked sill brush is good. I didn't like the bottom row of bristles that angle straight down, so I pulled them out, much better brush for me now. I shall purchase the new Xtreme medium sill brush soon and no doubt remove some bristles from that too. Fascias and soffits etc, I have an original Xtreme flocked brush that I found in my garage with fan jets. I might try the 12cm brush.
Having said all that, I purchased an Ultimate medium mixed and it's a great brush. I thought I would try it on bungalows and although it is excellent, I keep going back to my Xtreme tapertec brush, because it's quicker and does a great job. Also, I find the best brush on leaded, by far, is the Supreme flocked, but it's a bit heavy for me to use for long periods. So I got my drill out and drilled loads of holes into the back of the stock, to remove some of plastic and reduce the weight. (A bit like the film 'Uncle Buck' where he gets his drill out)