My high beams on my I/S shine great and far ahead and well lit all over and don't want to adjust. But, the low beams at night sure suck and when cars come at me, I have to slow down to 55 mph or so to see adequately ahead in the road for fear of not being able to slow down if something on road up ahead. Too bad there is no separate adjustment for low and high beams.
My IS is fine on low and high. Are you using the honda bulb? I remember reading of an adapter ring for H4 bulbs so they will be correctly positioned. They are about 12 bucks for the pair. I had thought of getting on hand for my next bulb burnout and replacement.