The very best way to install is
a totally fresh install of SH3 patched to 1.4,
install the GWX 2.0
then install the GWX 2.1
I run up to 10 installs.
All done in different ways.
The only perfect runner is a total new install.
There ae so many things that can happen to an
install.
Bad save bugs and such.
That's why we recommend,
in the highest way,
a new install.
PITA yes.
But well worth it IMHO.