As I say put a new blade in it and thought I’d give it another go,I have never used such a S***T thing in all my life,after trying and trying to get on with it I gave up and went back to my 14” Unger S with the blade cut right in tight to the ends with near perfect results in half the time with ease.
I would much rather have a squeegee that needs slight detailing any day rather than one of those things,Luke the window cleaner thinks the same I think he only ever uses it now on a pole for less detailing on the top part of shop fronts his Mrs then goes along the bottom sections with a traditional squeegee.
What I noticed before with them when they first came out was they appear to do an ok job until the sun finds you out,I cleaned a couple of windows indoors with it and at first they seemed fine when the sun came out they looked like a child had been drawing over the glass with a crayon.