I have ported MY Battle System Hack to 3.5 - which, unlike this hack, has no fool holes. The only things that needs to be done is moving code modifications into plugins (which is a matter of 5 minutes, since the code is already in its place and 100% working). Anybody who has the 3.0.7 version - PM me for updates, anybody who does not - PM me for info.
Any feature suggestions or concerns with 3.0.7 version - also to me via PMs.