Yeah, I noticed the diagonal movement. Seems like bullets travel a little faster in those directions, too. I'll just have to do something to compensate and even it all out.

I did the herding, also, running an octagon-like pattern around the edge then pulling off to one corner of the map and firing like mad.

Think about it though, it's kinda like having a square and running a diagonal line through the square. The square is 3 inches on all side. When you travel in a cardinal direction, you're traveling 3 inches to the next point. But when you travel the diagonal, you're actually traveling about 4.24 inches from one point to the next. Ah, back to basic geometry, but this is the same principle showing up in the game.