Now that my angst over f stop is alleviated thanks to yahsemtough, I'm deciding on my underwater digicam based on strobe compatibility and ease of use in the housing.
So my questions to current owners of CP5000, C5050, and G2 (or G3) are;
-is it easy on your setup to adjust +/- strobe power (using TTL)
-is it easy to review the image long enough to decide if it's OK, and possibly even delete it on the fly without going into review mode
(Of course I realize this also depends on the housing to make these available.)