I find that the arrangement with my front fog lights is nearly useless. In this part of Canada, we have daytime running lights. On my car, they are fairly bright halogens (not my outside zenons). If I want my fog lights on, either the zenons need to be on, or the parking lights with the daytime running lights. In that configuration, the daytime running lights are so bright and forward-pointing, that they would cause too much glare from fog/snow, etc. So long as the car has well-focused zenons, I think that fog lights are useless. (IMHO).
This concludes my comment for the day.

This concludes my comment for the day.