I bought the tool you posted up Daz and it worked a treat, it went with a real bang when it let go.
New one on and not slipping but even this one leaves a gap right in the line of sight on the drivers side 🙁 I may see if the blade beds in as the actual arm is much stronger.
So that's new Bosch wipers and arm and it still isn't clearing, confused to what it may be.
It clears on the sweep up but not on the return sweep down leaving a mead /gap, really odd?