Not what you might expect, given the title, eh?
As you can see, Crack was another of Quality Comics' anthology titles, headlined by the Black Condor! Above is issue 10!
Issue 20, and still the Condor reigns!
By issue 30, the Condor's lost the cover spot to Captain Triumph!
By issue 70, the title's changed to Crack Western, so it wasn't just All-Star that this happened to!