RE: pkgng default release schedule (contd...)

A few more reasons (unless I have not seen some relevant documentation to the contrary) to not mandate pkgng as the default...

Nowadays, one can save time by installing two ports which officially or unofficially conflict, and have /var/db/pkg entries for both, and even
local workarounds (for instance, moving the duplicate binary elsewhere before the second install) (Perchance removing the line in the Makefile).
...
A failed "make install (register)", one can check the /var/db/pkg/ directory(ies) to double check visually to what extent it did NOT fail.
Similarly for a failed "make deinstall (unregister)"...
...
pkgdb -F to fixup stale dependencies and resolve dependency information.
A proven method in the portmaster manpage to reinstall all ports.