other than running them the wrong way and only issue having a clicker screw come undone on one
not had mine a apart so really boils down to how much salt get into/on your reels
my rods nearly always sit up top the tee top so get exposed to little salt spry when running and just a quick hose down after the trip is over and then stored away dry .....
since the TMX-5 is a sealed carbon disc drag not much should bother it ....
but a yearly clean down and a smear of graphite grease should be ample
think one of the biggest mistake islander owner people do is over flushing the reels with fresh water .
hence why they rust out the sealed bearings and why the reel is then creeping as the cork dries and shrinks
the smear of grease each time is worn away off the cork drag ...
thats just MHO