That is very useful. The fit between 1 & 2 on your schematic is very poor on my Aero - there is a lot of play and I have solved it (temporarily) with gaffer tape. There is still a lot of play in the linkages which means that the 'rest' position of the wipers varies.
The blades I sourced from ebay
28" BLACK Silicone Rubber Wiper Blades Refills 2 Pack £4.95 which you simply cut to fit.
The securing clip will need enlarging
You can just see the irregular filing that I did!
Now 2/3 wipers are perfect and actually clear the screen, one still needs further tweaking.
Good luck
