Switch SRM_WSRM_1: Business Function SRM, PI-Independent - Rerversible?

Hi Gurus,

We have requirement for activating SRM PI Independed Switch "SRM_WSRM_1: Business Function SRM, PI-Independent Enterprise Services FND_SOA_REUSE_1". Client wants to know, if tmrw they have PI in the landscape can this switch reversed?. As we know in the latest version SAP have come up with switches which can be reversed provided switch does not impact the transactional data.

Your response is highly appreciated.

Regards

Prashanth