Hook arm aero blade?

I have two of these Bosch AR70Ns - they have been very good. Another benefit is that if the arm is beginning to get closer to the windscreen the bulkier mounting lifts the arm significantly further away meaning less risk of scratches. Obviously not a substitute for getting the arm refurbished by @depronman but a good upgrade nonetheless.
 
The Aero style wiper certainly makes the A2 look a little more modern but my AUA is so slow I doubt I'll ever see the benefits of any aerodynamic down force! :)
 
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