Delta index

Hi All,

I have a query based upon the Delta Indexes. Please help in this cause. We have an S index table which consists of 652356 records. One of the Sap note states that any index table more than 500000 records to be declared as delta index. Even i have checked in the RSRV test for propose delta index. It also suggested me assign that as the delta index. Is that checks are enough to delcare the index as delta index or if anything is still missed out before moving into main index to delta index.

Please let me know on this if any one come across.