For hack programmers, I have some info on GCKR hack.
One of the GCKR hack maker posted that replacing KOM file still works.
He explained that KOM file that are now detected is made up by
KOG GC TEAM MASSFILE V.0.2 but if you change to
KOG GC TEAM MASSFILE V.0.3 it will work.
So basically V.0.2 header is blocked while V.0.3 header isnt.
Sorry for bad grammer, and I hope this helps