Vesting in document v. in practice.

[Guest]

We are looking at a takeover situation that has used the standard 6 year vesting schedule since plan inception. In 1996, the plan was restated onto a volumne submitter document (for cross testing purposes)and received an approval letter. The drafter incorrectly checked 100% immediate vesting. The plan has continued to operate as if the vesting schedule is 6 years. I spoke with the drafter, and he admitted it was a drafting error.

Is there a way to correct without fully vesting everyone since 1996? Does the intent of the plan sponsor and apparently the participants count? Thanks.