I'm not sure if this helps but I just replaced my Hamilton 10K bulbs with Ushio 10K bulbs. The Hamilton 10K were okay but they didn't always fire up quickly with my PFO ballast. The Ushio bulbs are better IMO and have a more crisp white light.
I really can't say what the 14K bulbs would be like but my guess is that they are quite blue and don't put out the same volume of light... If you like the blue look and don't want to use any actinics then they might be a good choice...