Well, after equipping Scotts truck with the new 41-01 wiper setup a while back I decided to put on my new wipers while I was installing my new windshields.
I have the saturn "upgrade" kit and went about installing it, got the arms painted, everything drilled out according to instructions, the whole bit, after both the knurled adapter set screws stripped out(it wasn't even tight yet) I attempted to use the non set screw adapter as shown using the included lock nut, after having difficulty threading it on I looked at the nut and discovered it hadn't been threaded at the factory, no big deal, break out the trusty tap and die set, 30 seconds later, ready to go,then the black spline washer promptly popped off and went to wherever it is hardware goes to hide.
Went inside, ordered the 41-01 setup, dropped the "upgrade" kit in the recycle bin.
Nothing annoys me more than cheap, poorly built parts.