i'm using the 10bar housing for the gf1 and just brought it for a wkend dive in tioman. but don't think the pics are wetpixel worthy yet, perhaps after a few more trips. anyway, i find the ergonomics of the housing could be improved and never use the rear dial underwater. the reason is that the housing dial is spring loaded, and you need to push the housing dial in before it can engage the camera rear dial. And when you push it in, it acts as though you pushed in the rear dial and the setting changes. it is therefore very easy to press (change between SS and F), but rotating is a pain. I used the Q-menu button to change the settings underwater, more button presses, but it works always.
Hope tt helps.
Really appreciate your sharing of experience with the 10bar housing
I am also trying to decide on the Seatools vs the 10bar GF1 casing. trying very hard to figure out if the seatools is really worth twice the money ... and cost twice the camera
For the 10bar casing, did you encounter any problems with using the rear dial ?
I understand that the rear controls are by friction and not geared (just like the mode dial) ... so was it easy to press (to change between SS and F) as well as rotate to change the SS and F setting ?
This is important to me as I only shoot in M ...