Dave,
I wish that I could be of some help here. I just bought from Cornwall the San Felipe which is Panart. I think that Gary is correct that Panart, Mantua and Sergal are all the same in function / form / company, etc. I know I am not answering your question b/c simply I just don't know and have not build enough wooden ships from all the major companies to determine that.
This might be of some help; and you can do what I did, and go to this link at Cornwal Model Boats (CMB) and look at this list of instruction and build manuals here: http://www.cornwallmodelboats.co.uk/acatalog/mantua_manuals.html I downloaded the manual for the Panart San Felipe and looks good within reason of what I would expect. I think most manuals are going towards picture and less wordage. This is what OcCre did and when it came to the Rigging, they had one sentence "please refer to the rigging Plates for rigging your ship"
May I ask what ship are you interested in ?
I assume that you have already visited the site: https://www.mantuamodel.co.uk/
I decided to just go with Mantua this time around.