Should have followed his own advice.

I was surpised to find that Cemetary Ridge was much less steep than I had expected. It was more of a gentle slope, especially compared to the difficulty terrain at Little Round Top.

Having said that, even a relatively gentle slope provides significant advantages for the defender, the Union in this case. I wouldn't have wanted to advance toward the Union lines on a hot July day, having to cross several relatively open areas enroute while under fire from indirect fire at first and then the withering direct fire of dug-in federal troops.

It wasn't the uphill charge that was the deadliest factor so much as the long open field. He was fighting as if his troops were those little wooden blocks that you move around on a game board. To an extent, all of the generals still thought that way. They were still planning for 18th century pre-industrial warfare. 50 years later, European generals still hadn't learned that lesson

It's a good thing he was over-ruled by Lee.

In reference to the Bowling Green massacre.