they were set in a TEK 24 fixture, regular stock ballast i guess not really over driven but i did have that fixture close to the water so all the SPS liked it. In fact i had two fixtures, one was set with all hagen and the other with all wave point and before that it was wave point and giesseman and there was no change in the corals color, maybe slightly due to adding more blue or different actinic.
The biggest change was when i switched to LED's, loved the blues, hated it when it was on during mid day, corals never looked the same. I probably should have stayed with t5's they worked great with what i had.