Hi Barry,
just wanted to let you know that for S/4HANA On Premise, SAP recomends to implement via the IMG. Please have a look at the following release restriction note: https://launchpad.support.sap.com/#/notes/2234180
There is an updated Administration guide for S/4HANA On Premise 1511: Administration Guide for the Implementation of SAP S/4HANA, on premise edition (1511 FPS 2)
Best regards,
Susanne