[seven months later...]
I replaced the offending articles with some Valeo RetroFit Flat Blades (R55, I think) and they work flawlessly. £12 a piece from Halfords.
As a result I have a lightly used windscreen wiper clip going spare as a result if anyone is in dire need. Let me know.
I replaced the offending articles with some Valeo RetroFit Flat Blades (R55, I think) and they work flawlessly. £12 a piece from Halfords.
As a result I have a lightly used windscreen wiper clip going spare as a result if anyone is in dire need. Let me know.