After doing a little more research about COMPC, I found I wasn’t optimizing or compressing the output as much as it could be. From now on, there will be two SWCS - one with debugging and no optimization, and another without debugging, and with optimization. I also figured out how to optimize the Guttershark SWF even more, using the “optimization” command line tool in the flex SDK - it cuts off about 20K. See the Guttershark page for more info.