Fluffy is right, as usual.
A new spellcasting system, that reorganizes the spellbook-related 2das, requires a lot more work "under the hood",
than the - relatively straightforward, but tedious - rewriting of the spell-related includes and the spell scripts.
In particular, it is essential that the PRCs automated make process must be functional all the time (one does not
need Stra'ts occasional reprimand to understand that). The PRC make process is not easy to understand. For
instance, the make file is auto-generated, relying on a complex interplay of external programs to auto-generate
the make file. One essential ingredient to that process are several java routines, that extract information from
the source files (*.nss), use it to generate the make-file, and also build the spellbook-related 2das (spells.2da,
feat.2da, iprp_feat.2da), the tlk- entries, and even the manual from a set of "base" 2das. These java routines have
to be partially rewritten, and one has to have a pretty good understanding of the *whole* make process in order to
minimize unwanted side-effects (such as the manual generator screwing up - Fluffy knows about that
).
Without implementing these changes (and properly testing them before updating the PRC's CVS) multiple metamagics
will remain a private project, only. That has been clear to me from the beginning, however, I must admit that I somewhat
underestimated the "additional" work that must be done within the PRC make process.