Changes to SDC for purchased F tickets. Being ATL based, at this point I only collect SM to position my family of four in F/C+ to JFK/LAX for TATL/TPAC flights in J on whatever carrier has the best price/product/route for our trip as I have gone completely free agent.
But even with major gutting and changes, I am ATL based and about the only routes that I take regularly that has any semblance of competition for non-stop flights are LAX and NYC. But gutting FC SDC would truly just have me buying the cheapest F ticket where a direct competitor exists.