If it were me I would ditch the D6, I and others have found them hard to read underwater. If you want a Suunto think about a Cobra.
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Bullswan:Just curious but how did you pick this stuff out? Specifically the computer. By features or price or reputation or what? The reason I ask is that I am researching computers now myself and I am thinking they all sound about the same except for wrist mounted or wireless etc etc etc. Seems like they all do the same things. What makes them so different price-wise.