Regarding file size. I sometimes am asked to make color maps for race directors. Using Illustrator, I put all the color stuff on a separate layer. The USATF layers are all B&W. To make the USATF submittal in .pdf, I select all the appropriate layers, copy them all together and paste onto a single layer in a new document that I save as .pdf. This results in a file usually under 200kb, B&W, nice and crisp.