ive bin hiting it hard trying to catch up and the tecbuk nearly killed me last week so put the extreme blue hibrid on and i gota say i love it its a brute of a brush i rember the first time i used it and it lasted 2 windows so took it off then had a nother go and hated it took it off then got a ultmate with was nice brush then desided to tey the extreme luv it in fact so much im guna order a nother the new extreme as i need a section and a sill brush , the brush holds no dirt and is so lite and to be fair it does scrub as good as the ultmate infact ide say maby a tuch beta on pollon