this is an overall GREAT description ... GREAT!
very accurate ...
one thing to add, what kind of person are you, when you dive with those buddies that have the HIDs, will you be satisfied?
at one time i was diving with a 50watt HID and it was simply put, stupid. yes i had the brightest light. so what. one of the beautiful parts of diving with cannisters is the ease of communication. when you have a light that is either weaker or stronger than your buddy's light, it is not unusual to have your beam over power or get lost in theirs, making that ease of communication worthless. I sold the 50watt and smartened up.
that handheld is suitable and easily converted to a cannister ... but why bother for the price? when the MR11s are still around (even though discontinued) for the same price?