In my experience of online ordering, I have found that the closer I order a "custom" piece to stock specs, the better the result, even though it takes some work to get it wearable, such as cutting the base to template size. I have found color to be particularly critical to wearable results, and since I have up to 40% gray in my hair now, it can be hard to get the variable gray percentage I really need. Custom orders usually have not been consistent for me, while stock units have been. I have sacrificed the custom qualities that if successful would make a perfect piece for the consistency of stocks(or near stocks) when it comes to color, density, template, etc. Obviously it is easier for the factory to do stock pieces, since they probably follow set procedures and quality standards, more so than customs, which in my opinion must be open for interpretation given the results I have had in the past. And since I am creating my own reality with my hair, I value consistency over perfection.