Sorry if it has already been discussed, but I can't find it.
Sometimes when I'm building things, rather than 1 energy is used 1.5 is used. Why? Grrr.
buildings ask for packets just faster than once a second. I'm pretty sure it's been dicussed somewhere, don't remember where though...
See here (http://knucklecracker.com/forums/index.php?topic=838.msg7629#msg7629).