I agree with Monketh on the size. It looks better if the sig isn\'t ten times bigger than the text you type (a line or two), and usually shrinking images down, especially when there isn\'t a lot of complicated detail, compresses and smoothes it quite nicely.
I could understand if there would\'ve been complex detail work, but dice and chips aren\'t that complex ;) Try it out, see if it does indeed look better when it\'s compressed.