Much More Better, +1 on "lifting the cover." Well, partly. Where the heck is it? At least on the Gen II, there is a little cover on the top of the wiper drive axle that prevents the arm from lifting. I suspect it is the same on your car. Here is a pdf courtesy of john1701a that discusses this matter, with photos too! View attachment Prius_Maintenance_Wiper_Blade-1.pdf Hope this helps.
The difference btwn the Gen 2 and the Gen 3 is that the Gen 2 is fully removeable and the Gen 3's cover is actuall hinged so you won't lose it.