Always found it funny when people compare the D9 and the K4 to the 1 year older Mustang variant, instead of the contemporary F/G/J. The fact that the D, with historically accurate boost setting, was more than a match for the new K4 and D9 despite them being 1 year newer, and thus was considered sufficient and the F/G/J were not rushed into service, says something about the Mustang.
Overrated? :lol: