"mouse button drag scroll" needs an option to work more precisely.

Ok, the new "mouse button drag scroll" option is way better than the previous middle button use, but.. It's sloppy. Why is it sloppy? I want to exactly grab the terrain and move it. No slop. I want my pointer to be in precisely the same place it was relative to terrain and characters when I let go of the button as it was when I pressed the button. I don't care if it's pretty or not, I want precision.

Why is it sloppy, again?