Don't be too quick about the change to chain, you might not be solving the problems you think.
Chain (especially stainless) is MORE susceptable to electrolyic corrosion
than wire, and more importantly, chain fails without notice. Chain losses strength without easily visible changes, and then fails suddenly and completely. As wire loses strength a simple visual inspection
tells you things are wrong.
It is an especially bad idea to mix galvanised and stainless parts
Yes, you see chain used here a lot, but that doesn't mean it is the right answer!
Consider your bobstay a routine maintenance