I like the way Mercedes does it on the S class. The W126 has the two wipers and the second one plays follow the leader. Works pretty good seems to get as much as the windsheild as possible. The only thing I dislike about this system is it lacks a variable speed. So when its a light rain you are always turning it on and off.

The W140 has a similer system that uses the mono blade of the W210 with a second normal blade playing follow the leader. Seems to work well, also the spoiler on the wiper arm looks cool.

Their is nothing wrong with a mono wiper system like in the W210/124, I just prefer the way they do it in the S.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200