Hello all,I had sent my U2 back to Surefire 3 weeks ago for the big dark spot in center of beam.I have just received the new light.Surefire changed the bezel only.The spot is still there ,but it is far less noticable.The power select ring turns nicely,tailcap is fine,but there is a smudge and fingerprint under the lens and on the reflector.Does anyone know how to remove the lens cover?Thanks