1716G/A also know as 1584 G/A

Does anyone out there have or know anyone with the mutation 1716G/A ? Im trying to find out if this type carries disease symptoms. Ive been told that in some people it does, and others are not affected. My husband has has been identified as having this type of cystic fibrosis but has been healthy all of his life. We also both share the Delta f508 We have done genetic testing and are considering IVF but even our genetic councilor cant give us a solid understanding whether 1716G>A is safe to implant.

Thank you for anyone that can help me