I must say I find this talk of a St. Andrews composite course to be blasphemous as well as nauseating. I know it may just be a fun thing to imagine but really, we're talking about The Old Course at St. Andrews, the HOME of golf! When I visited and played TOC in 2019 I remember Gordon McKie, Course Manager of TOC telling me The New Course is a better test of golf, but the R&A would never move The Open because ALL the history is on TOC.
I too don't want to see -24 because I don't find birdie fests compelling drama, but at the same time the fact the R&A sets up the course and then doesn't care what the winner shoots is one reason why the R&A is superior to the USGA when it comes to contesting a major championship IMO.
Cheers,