Stainless steel? Galvanic action? Not when using nylon monofilament (or kevlar/spectra for that matter)! Even heavy duty RA railguns come equipped with monofilament (300lb+ Mako mono last I looked).
As for stainless steel spears, never noticed a problem there either, but I flush & dry my gear and store it in a well ventilated area.
..thats what rokhlenko said. QOUTE : "
Aluminum on a nylon mono would be a non-issue "
i guess the problem of galvanic action will only take place when two metals are involved.
probably even more once saltwater is involved as well.
i am not an expert in physics or chemistry, but sure i can say that whenever aluminium and steel are involved,
the outcome is not good. i have seen aluminium parts just by themselfs are suffering severe corrosion once used in seawater.
i try not to use anything made out of aluminium in seawater again.
with the exeption, sometimes i cant get any copper-crimps, so i have to use aluminium-crimps.
another point is the maintenance that you mentioned. not everyone have the time and options to maintain and store their gears like
you maybe can do. and then the galvanic action/corrosion sure can be a problem.
this is maybe just another bad example of my gear-maintenance , but just to show the possible outcome.
i just pulled out this old stainless-shaft that i rigged about two years ago with stainless cable. the crimp on the shaft is aluminium,
and the one to the swivel is copper or a copper alloy.
the shaft was once used since i crimped it. and this is how it lookes now, after some two years of storage....the aluminium crimp is actually cracking apart....