Curious to hear your results. I've tried most "conventional" blades and none do a good job of cleaning entire window wiper "sweep" area consistently forward and return. NOTE I have a wagon and maybe a "wagons" windshield shape is slightly different than the sedans and the MB designers felt it wasn't worth the expense to compensate for 20% of the model run.

PS Invested in outrageously expensive Valeo for daughter's 2004 Saab 9.3. They clean wonderfully forward, but not so good on return. Maybe the windshield designers should consult with the wiper designers??? Or is there a secret pact [mfg - vendor - dealer] to provide special version only available through dealership. Like they care >>> I don't think so....