After signifiicant experimentation, I have found a combination of driving lights that works best for me. In the following photo, you will see two sets of auxillary lights. The upper lights are sync'd with the high beam but have an override switch. The lower lights are controlled by the third position of the euro switch I have installed (see wiring diagram).
The upper lights are have a driving light pattern and get on down the road. The lower lights have the broader flood pattern. With this arrangement, I can leave the lower lights on in town and with oncoming traffic in the country. It GREATLY reduces the blind effect that occurs when you have only one set of lights and they are high beam connected. When you have to go to low beam, you feel like you are blind. Several people have commented on how little they get to use their driving lights. This setup really helps both conditions
I just discovered an added advantage to this arrangement. The other night, my low beam headlight went out. Using the lower lights I was able to get home before effecting a headlight bulb replacement.
The upper lights have 100 watt bulbs in each light and the lowers have 55 watts each. This gives me 400+ watts of light out the front end for the blackest of nights and the friendliest of deer.
The lower lights have the dichroic lenses which gives off a yellow light. This really gets the other drivers' attention. I don't get lost in a sea of headlights in the rear view mirror of someone in front of me.
I have a voltmeter on the bike and with all lights blazing the voltmeter stays above 12 volts.