I have a doctor that this is his standard MD retainer.
His preferences are:
Labial bow from distal of the first bicuspid to distal of first bicuspid on both MX/MD retainers.
Labial acrylic 3-3 on both MX/MD retainers.
Finger clasps mesial to the 6’s on the MX retainer.
Acrylic trimmed to distal of the 6’s on MX/MD retainer
Short wire anchor tags on MD ( so that the retainer is more flexible than if you ran the wire along the length of the acrylic)
This video is of the wire bending of the MD retainer. Bending wire distal of the 4’s makes crossing the occlusion to the lingual side a little tricky! You can tell it took me a few tries to get it like i like (plus i edited out a few more minutes that you didn’t see ;). But the doctor likes it that way so that he can have wire touching the 3’s, therefore, more control of them. Also adding acrylic the the labial bow 3-3- really helps maintain tooth position and increases retention.