Aske,
I adjusted the low beams in a split fashion, yes, to me they were useless from the dealer floor.
Take the right side low and screw it high up into the air, the threshold way above the oncoming cars, then take the left side low and screw that threshold onto the oncoming cars hood deck height, just below the drivers eye level. What you get is decent illumination for the twisty roads from the right side low (the higher the better) and it does not blind the oncoming cars.
The center high beam is useless and the PIAA replacement sounds like something I will do. Also, I have motolights to suppliment the high beams, operated with the high beam switch to keep things simple.