Feature Overview (aka. Goal Summary)  

The MCO merges MachineConfigs in alphanumerical order. Because all custom pools also are workers, this effectively means that all "worker" configs will take precedence over custom pools that come earlier in alphabetic order. This is counter to most expectations where the reason for creating the custom pool is in order to be different than the worker pool.

Goals (aka. expected user outcomes)

Custom pool configs will "win" over worker configs. This is inline with what most customers expect.