Bought this coated string for a custom strings gauge. Been a long time Elixir strings user. This newer formula with ultra thin coating feels and sounds even more natural and classic as far as roundwound strings tones go. Seems resistent to corrosion just like it's supposed to be.
Good thing the possibility to buy single strings for your own gauge, also with these Elixirs, which are your best bet as coated/anti rust plain strings, in my opinion.