As a 3D printing expert, you know your machines and materials much better than anyone else. So, we usually ask vendors to inspect the files and suggest resolution and layer height settings that would work better for the project. Therefore, there are no default values for that.
Customers may ask for specific quality or resolution in the comment section for the order. If you think that their decision may not work out well, we suggest contacting them with your feedback and discuss how to proceed. In case if you agree with their request, please, follow the specifications - the cost difference (if there is any) can be added to the order using the “Offer Additional Service” button on the order page after accepting the order.