I've heard "trackball rotation" but yep, you're spot on. To give an example, rotate both the unimproved and improved globes so you're facing Antarctica dead on

I've heard "trackball rotation" but yep, you're spot on. To give an example, rotate both the unimproved and improved globes so you're facing Antarctica dead on. Then try dragging left and right. The improved is far more intuitive to me at this point.