I have both the P20C2 Mk 2 and the T20C2 Mk2. I have the LOP reflector on both.
Fantastic lights. The P20C2 Mk II is my new every day carry - it's a little smaller than the T model. I also find myself prefering the "P" model more. It produces a little more flood than the tactical model. And while the tactical model throws just a little further... When I shine both down my rear alleyway, its not much different in real world use. The "P" model is also cheaper.
Great flashlight.