I am trying to look ahead and decide about loading several hundred bread and butter registrations from the old board.

OOH this represents many many hours to build a playlist,OOTH it is duplication except for the occasional substitution of not found voices.

My first thought is to load the old at first with the idea of building a separate folder(s) of S970 styles and voices.

This is all assuming backward compatability.
What have you fellows done?