PFD prep

[dubob]

From my own experience, I have found that the bobbins will degrade over time from moisture/humidity and have let loose while stored in the boat.  The gas cartridge, not so much (as in never on my vests).  YMMV.  I keep a couple of replacement kits in the boat just in case.  I have 2 of the auto-inflate vests and they hang on the two boat seat backs year-round.  The ones that went off on me were stored in a closed storage compartment in the floor of my old Tracker.  Way to damp in there.  I haven't had one go off hanging on the boat seat since I bought the Thunderjet in 2017.