Lido and Bahama Beach have different features - the magic screen feature unit and the mystic lines feature units are quite different (as you say).
Bahama Beach has the unit documented in the manual. Page 10 shows the rivet side of the unit, but it also shows the index position of the spider that sits on the rivets.
Each spider finger has a particular letter associated with it. 'A' for example, is at the 12 o'clock position, and it is wire color 30.
Hope that helps!