Please recommend: Which client to use for Integration Server. (001???)

Hello!

We have just installed 'SAP NetWeaver 2004s SR1 ABAP+Java' Usage Type 'NetWeaver Process Integration (PI)'. (Cute new name for XI, no? :o) ).

The default client for the Integration Server is 001. I have found notes etc on how to change it to another client (note 940309) but not really any recommendation on what to do.

Being old-school using client 001 for anything is wierd to me, but I know things are changing...

Can anyone please out there please let me know if there are any guidelines/recommendations for if to use 001 for this or not?

Thankyou!

Nam