R3 headlights do indeed have a poor high and low beam pattern. If the high beam is adjusted properly the low beam is too low, adjust the low beam and the high is too high.
There is a simple fix to this since the problem is related to another inherent R3 problem ....
Increase the power to the headlights.
They are fairly dim lights because of the ignition switch resistance, the headlight relay modification gets full 12V potential to the lights making them a brighter white and having a larger focus pattern. You can see the low power problem in the yellow tint visible when looking into the lights from several feet away.
I added lights low on the bike under the radiator to fill in the missing pattern while on low beam and that helped some. But only when I installed the Eastern Beaver Headlight Relay Bypass Harness did the visibility at night really improve. Later I added the Triumph fog light kit and with those filling in even more of the missing pattern, my night time visibility is excellent.