Good Night Snippy.
I certainly accept any other Foxhole troop's opinions about Gettysburg as valid.
As I see it, this Culp's Hill battle wast the center of gravity of the whole affair. If the Confederates had been properly trained in night battle they likely would have won. (And also at Chancelorsville, as well.)
The Japanese pre-war night battle training was the best in the world before the developement of vision aids. The North Viet Namese Army were no slouches either.