How does Workload badge handle custom applications?

I want to have an accurate workload score for a custom application.  

Custom objects have an associated Workload score OOB.   How does vCops handle custom applications with Super Metrics?  What does vCops rollup into the custom applications Workload?   Would I need to create  a Custom App Super Metric as a KPI for it to rollup into the Application's Workload score?

Thanks,

-MattG