I ran the 10K AB 250w DE bulbs for a year. They were high powered bulbs, but the colour just wasn't very good. They really made my corals look brown. My A. kimbeensis that should've looked more blue always looked bright white with a little bit of purple.
I would go with the Reeflux 12K bulbs if you havn't tried them yet. They are what I switched to and have been great so far.