Truthfully the issue came up as a squid question, and I was tasked with providing some actual data. From some literature provided by an associate, the F-4 was promulgated as having a higher sustainable Mach speed than any comparable craft with a similar air to air, or air to mud weapon capacity.
Again, I’m on the outside looking in, and a bunch of these guys flew under Jesus nuts.
I really appreciate the perspective being provided. Thank you all.