Front fender trailing edge tabs for RT's etc, like the Ryker fender tabs

So I'm watching many Ryker reviews and reading positive Ryker owner's reviews and wondering if anyone in the past has modded their RT fenders to add a horizontal trailing edge tab / flap like the 2019 Rykers have,
Having rode my RTL in hours long frog choking rains coming back from Spyders in the Ozarks, I can see where these tabs would keep some water off the rider.