>If you were bringing things up by PK that may be true. But you are pulling information based on the bit fields. Since you can't have an index on a bit field, SQL Server must do a table scan. While it may do an index scan on the PK, if clustered, it is essentially doing a table scan so there is no benefit. Unless you are doing queries on ranges of Customers and using the PK for this, I don't think you need a clustered index.

Thanks.