If you ever get time to add half jacket 1.0 and half jacket xlj to your list I successfully completed my first 6 custom cuts for them!
Straightlink is a matching curve and perfect donor!
Polarised straightlink lenses only work on half jacket 1.0 (xlj shape retains partial etching).
Plaintiff isn't a donor for R2. Just gave that a try. It's way too small even when rotated diagonally.
Plaintiff squared works if you modify the "shark fin" slightly. @Anthony Thomas might have photos soon!