InboundRA , Destinations for metadata read

Hi All,

We are using the Multirepository to use same InboundRA for two different SAP Systems ( EQ1, MQ1)

First Question:

Mulit repository Destinations for Metadata Read is not defined like : XI_IDOC_DEFAULT_DESTINATION_EQ1 , XI_IDOC_DEFAULT_DESTINATION_MQ1

Instead we choose to name the Destinations like this: EQ1=SAP_EQ1CLNT100_IDOC_WAL;MQ1=SAP_MQ1CLNT100_IDOC_WAL

We tested the InboundRA, it works fine and we could transmit Messages. But is it recomendable to use own Naming Pattern or do we have to stick to the Pattern : XI_IDOC_DEFAULT_DESTINATION_<SID> ? Does this Naming has influence on other Parameters in SAP PO

ps. We are using SAP PO 7.4 Java Singlestack

Configuration:

I saw this document in SCN, but it is not clear to me due to second sentence.

In this document : http://scn.sap.com/docs/DOC-50238 it is written on page 7:

Separate RFC destination can also be created for sending acknowledgements in this case naming pattern is not mandatory.

Note: If this is not set the default destination of inboundRA XI_IDOC_DEFAULT_DESTINATION is used for metadata of any idoc messages from the R/3 system.

Second Question:

Do we have to use the Destination "XI_IDOC_DEFAULT_DESTINATION" ? If the MulitRepository is working , do I need the Destination in this InboundrA ?

Thank you for you help

best regards Gireesh P.