After 5 years the rubber seals on my 800 are so warped that neither fit in the holes properly (resulting in the screen fogging up whenever it rained). I wrapped the unit up in clingfilm, then moulded a piece of Sugru over the bottom so that it covers the seals but just leaves the buttons exposed - left it overnight to harden, then remove the clingfilm and you are left with a Sugru sheath that is held in place by the standard case quite nicely.*
*I still duct tape the SD port though, belt and braces..
After 5 years the rubber seals on my 800 are so warped that neither fit in the holes properly (resulting in the screen fogging up whenever it rained). I wrapped the unit up in clingfilm, then moulded a piece of Sugru over the bottom so that it covers the seals but just leaves the buttons exposed - left it overnight to harden, then remove the clingfilm and you are left with a Sugru sheath that is held in place by the standard case quite nicely.*
*I still duct tape the SD port though, belt and braces..