Sean
That was a really enjoable thread and brought back great memories of my time working there, albeit on the PGA Centenary Course (puts hard hat on). I was volunteering at the Solheim Cup last year and had a good walk around the Kings and Queens and i had forgotten what a brilliant site it is.
The bunkers did undergo a big renovation in 2015/16? and Capilary Concrete was installed. As much as it doesn't suit the eye, the amount of rain they recieve up there is substantial and the use of bunker liner will be a big benefit to the Greenstaff.