I spoke to the rep at Streamlight who said that the light should not be put into tightest spot b/c the bulb will be up against the lens and ruin the lens. She said to back off the focus a bit but that may leave a whole in the beam. Tell me your observations on the beam in spot and flood...wholes?:shadows? etc..ALSO, what kind of reach do you get in spot mode? Any comparisons to the UKE SL6?