Possible to Evaluate and Suppress Section Twice?

My report is composed in Crystal Reports 9. I am using this formula - {CHECK_MRCH.check_vendor} <> 'BT OFF-SIT' - to suppress rows in the Group Footer via the Section Expert. That gets me half of what I need. Once the rows are suppressed according to the 'BT OFF-SIT' criteria, I suppress any of the remaining rows that have a Check Date value greater than or equal to 10/1/2014.

I tried amending my Section Expert suppression formula as shown below, but that did not accomplish what I am trying to do. How do you suppress data, then go back and check the resulting data, and suppress it with a new set of criteria?

{CHECK_MRCH.check_vendor} <> 'BT OFF-SIT' and

{CHECK_MRCH.check_date} <= date(10/01/2014)

Thanks for any help on this.