So about waiting until the chapter change to increase the physical size of my page output, nevermind! Starting today, each page is now an entire 50 pixels wider! *kazoo* Nah, it's not going to be terribly noticable, but it's still an improvement.
I was tempted to go even further, but having the page load with relative efficiency is a little more important. Maybe I will a year from now when we all have Google fiber or something equally crazy.