Scrub the topic. I got helpful answers elsewhere from someone that knew what they were talking about.

============================

P.S. My experience of the usefulness of Synecdoche on a Windows system is that it is (in essence) 'portable'. That is something that a 'standard' release of BOINC isn't.

The capability is very useful in some contexts for ease of system maintenance. Being able to drag and drop the Synecdoche 'install folder' (contains all working data as well) anywhere, launch again and it carries on from where it left off with no issues, is a huge bonus. Which was, according to statements at the Synecdoche website, part of the intention of the developers; and a capability that earlier BOINC had but that was coded out in later development. 'Newer' isn't necessarily better and if it isn't better then all it is fashion to provide 'Newer' - keeps some glaze-eyed and consuming for life.

I wanted to retain 'portablility' for using a client on a Linux system. Now I think I know a very straightforward way of how-to. Cheers!