GDG- Ewell and the High Ground

[Bob Coffman Jr - Info From Data]

>If he had been with the army, undoubtedly Culp's Hill would have been in
the hands of the ANV.  As a matter of fact, if Stuart had been available, it
is even more likely that the ANV would have arrived at Gettysburg first, and
the situation would have been reversed with the ANV on the high ground and
the Union army trying to decide how to confront this near impregnable
position.

I think this is an excellent demonstration of why "what-ifs" are so
dangerous.  I think you are taking the battle as we know it, adding a dash
of Stuart, and making adjustments to what we know happened as a result.  I
think what you describe as "undoubtedly" and "likely" are just a couple of
numerous possibilities given the presence of Stuart with the ANV prior to
June 30.

- Bob Coffman