It may not be easy, but not impossible - but what difference would it make if:
Firstly,
- the Comet & Black Prince (with a better engine than OTL) are ready to replace/supplement the Cromwell & Churchill in the summer of 1944.
Now, not necessarily at D-Day, but say early July that follow on formations had them, and the process are re-equipping can take place.
So what effect could tanks with more capable main gun make??
Secondly,
- if the first two arrive early, then the same question with a Centurion being deployed after the capture of the Port of Antwerp - that's where it gets unloaded.
Firstly,
- the Comet & Black Prince (with a better engine than OTL) are ready to replace/supplement the Cromwell & Churchill in the summer of 1944.
Now, not necessarily at D-Day, but say early July that follow on formations had them, and the process are re-equipping can take place.
So what effect could tanks with more capable main gun make??
Secondly,
- if the first two arrive early, then the same question with a Centurion being deployed after the capture of the Port of Antwerp - that's where it gets unloaded.