Upgrading ZCM 10.3.4 to 11.4.2 on Windows 2008 Sp2 x64 (2 x primaries).

Upgraded Oracle database from 10g to

Upgraded 2 primaries to from ZCM 10.3.4 to ZCM 11.2.0

Now upgrading the first primary to 11.3a and am not sure whether to "create a new user schema" or "use an existing user schema" at the "Oracle User Schema Options for Audit" upgrade wizard screen.

Does anyone have any thoughts here on what is the most appropriate option for my environment?

Thanks in advance,