Hi Glen,
This discussion is related to LSA++ Open ODS and Corp Memory - whats the difference ?. Please see my answers here.
You should not use SPO anymore. A partitioning feature will be incorporated in aDSO. However, for Corporate Memory you normally should not use it. Best practice is a kind of write-optimized DSO. In aDSO you can select the appropriate template.
Best regards,
Sander