Shipbucket

The only major weakness was the inability for the 102mm gun to deal with modern air threats (this mount, designed by early 1930's, was clearly too slow (in speed elevation/movement terms) againt last generation of soviet piston engine aircrafts and early generation of soviet jets aircrafts)

The 4"/40 Mark XVI was a pre-WWII design, and IMO less capable than the US 5"/38. I believe the West German Navy replace some of their Mk XVI mounts on some fromer RN ships with the French 100mm M1955. The newer French mount had a much higher rate of fire.