I think this thread has got a little confused.
There are two parts to the wiper.
The ARM, which is the part that connects the blade to the spindle
and
The Blade, which is the part that actually makes contact with the screen.
Arms-wise, haven't a clue, although how the standard arms can get in the way when parked is beyond me.
Blades-wise, Bosch aerotwin retrofits. I've had all manner of aero blades, these have been the best. Been on the car 2 years, been frozen to screen and all, and still clean as good as the first day I bought them.