One thing i noticed the black diamond has that the princeton does not, is the red led's for preserving night vision. Any opinions on how important this feature would be to the average joe person like myself? I've got by so far without ever having that feature so I'm thinking for me it's not all that important but I'd like to know if i may be missing something?

Ken, if you wouldn't mind commenting further on the princeton model, you mentioned the low output mode is good for inside the tent, however I noted on the user manual that the low output setting is rated for distances up to 30 meters? I'm no expert on how they come up with that data or how that relates to the light output, but in your opinion, does the low output mode provide just enough ambient light to see by in the tent? or are we talking enough light output to really light things up?