How do you manage consecutive check number using Remittance stub?

Summary:

When you use Remittance Stub and Void by Overflow in "ExternalCheck.rtf" template for PPR in Account Payables, you have check numbers for void check as well as actual check to be paid.
How do you manage check numbers for void checks?

Content (please ensure you mask any confidential information):

We are developping printed check for banks in the US using "ExternalCheck.rtf" template for PPR in Account Payables.
Our client would like to use the check looking the below sample.

We are using Remittance Stub to limit number of invoice lines on one page, and one check is numbered for one Remittance Stub.