Our custom fee is for any change to the standard product selection.
We offer a huge line of bench crafted covers that we make in a selection of standard color/image/button options. While we would love to be able to make a customized piece for every one of our customers, we do have a finely tuned production system and a rigorous production schedule.
Please consider that there is more that goes into any type of customization than simply leaving parts or a piece off or switching one color for another.
Any variation to an order (ie; special color/image/button combinations) requires a lot more in the way of order processing, steps and procedures in production, etc. than what may seem a simple tweak. The customization fee is a reasonable charge that helps us to offset the costs offering a non-standard/individually customized pieces.
We hope that helps understand the method to what may seem like madness.