I only have 1 chalice right now (miami hurricane) but it's looking GREAT under my Razor 160's, around 30" from the actual LED's. That being said, it doesn't require a lot of light, it grew fine far from my poor-par-penetration Ecoxotic Panorama Pro's.
My acroporas on the other hand are growing very well under the Razors.
Go easy on the acclimation...don't try to run them full power right away or you'll have a lot of white coral. The Razors are more powerful than something less than an inch thick appears to be.