On my 2015 when I was checking the wipers at purchase I did not like the wiper travel. I loosened the nut holding the arm to the motor and raised the low point of travel one or two gear splines. This increased the high point of travel to about three inches from the edge of the windshield. Since then we have traveled in the rain a couple of times and never had an issue with the wipers at highway speeds.
Here is a pic of how I set my wipers. Also, if you remove the arms make sure the splined adapter is the correct size. Someone in the past found that one of theirs was the incorrect size for attaching the arm to the motor's geared shaft and that caused their wiper arm to just flop around.
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