FWIW, after 3 years of mounting my EPRIB near the companionway in the galley using a Seasucker suction cup EPIRB mount, I've decided this year to keep it in my ACR Ditch bag in the lazarette. I've decided the scenarios where I will grab it and flip the switch manually as I abandon ship seem more likely than the scenarios where the boat is sinking up to the gunwhales and I need the EPIRB to deploy automatically. I'm a coastal cruiser, not a blue water sailor, and always a little concerned that some guest (or guest's kid) would find it attractive and play with it unbeknownst to the Captain.