Yup Regional Elite S3C on Delta, S3C on DC carriers, S2/S3 on XJ,OH,CP
Parents Fly S3CR Delta, S3CR on DC carriers, S3B on XJ,OH,CP

it really did suck getting bumped by DL employees, DL retirees, DL Parents
It never mattered except on 1 flight to Vegas after I turned mainline that I cleared FC and I wouldnt of if I stayed with RE