I have the Olight T20 WC Q5 and the quality of the holster is superb. I too prefer whitish blue L.E.D's which is why i liked my Olight T20 and T10 WC Q5's so much. I hope Olight will be going for a colour temperature of 6600K for their T20 T as this produces a cooler white tint also known as a bluish white :twothumbs
My Fenix P3D Q5 has a warmer colour temperature, but both are very good EDC's.