Combo rules in PeopleSoft GL 9.2, possible to setup a combo rule for 4 chartfields?

Dear all,

In the past Oracle always advised to do not use 4 chartfields in one combo rule. This would lead to a bad performance of the journal edit and post process.

For  PS 9.2 is this still  an issue?

Are there users who already use comborules with 4 chartfields? and what is the experience?

Thanks for responding

with kind regard,

Carola Ran