WLC 8.0 offers a best practice audit during initial configuration
Upgrading from 7.x to 8.0 does not offer this
You must upgrade form 7.x to 8.0 and then wipe-out the configuration. Next, configure the WLC from scratch from the GUI and get access to the BP analyzer
Available with WLC 7.6 MR2, 8.0, 8.1
WLC Upgrade Audit Workflow 8.1
This is a promised feature with CUWN WLC 8.1
Will enable you to perform a WLC audit at any time.