Well I consider myself to be a fairly intelligent person, but in over two years I have not found a really good way to figure out which MH bulbs are going to look the best in my tank. Right now I have two 400W Ushio 14K and even though I thought they would have a decent "blue-ish" color to them, to me they still seem too white! I'm ready to replace them but am torn between moving up to an Ushio 20K or switching to an XM 14K or 20K. Really wish I could try out a pair before spending money on them. Anyone else find this part of our hobby a bit frustrating?