Hi Jerry and welcome to our site!
You are correct - the 8th Circuit Court of Appeals ruled in 2009 that a person who retires as a Dual-Status Technician is excepted from the WEP.
That decision is legally binding only in those States under their jurisdiction - Arkansas, Iowa, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota.
Detailed Explanation of WEP and How it Affects Dual-Status Technicians
To request a reevaluation - you need to contact SSA directly. There is no special form.
However because of complications - I strongly suggest to have a local SSA attorney representing your case.
If you are not able to communicate via the phone - I might suggest to visit your local SSA office.
But - again - because of complications and absence of established procedure - we may not expect that your case will be resolved quickly.