A lot of glare off the bonnet, I tried a roof mount for 1 trip, I spent approximately 2 hours removing the light bar from the roof, and remounting it on to the Roo Bar that first night at camp and finished it the following morning before the second day of driving.
It was a spread beam, so probably made it worse, it was mounted on the roof about 300mm back from the windscreen on a discovery 2.
Roof mounted may be OK for slow off road but not high speed on road, or it may be the fact that I was using a spread beam.
I would like to know if anyone here has had more success than me, because it is a convenient place to put a light bar.
So if there are any tricks like a reflective shield directly under the light bar, or just a better quality modern light bar I am all ears.