It is quite possible, that the fmcb-system-init still fails (or do it in-correct) in some cases.
FMCB 1.8 is the first version, which have a complete system-init (in my opinion), but it might still have bugs and fail on specific models/regions/...
It also remembers me to a bug H4ndy and me had, while I made a first FMCB-Install for him.
Forced NTSC in OSD was in color (but 60Hz!), while forced NTSC in games were in black&white/grey-scale (also 60Hz).
V-Mode-Force for Games was done by "Xploder HDTV-Player".
PS2 V7/DMS3 V2 (FW:2.4b7); Seagate Baracuda 200GB
PS2 V7/CC1.0 (FW:34 hacked v2 BM:2.1.6); Maxtor DiamondMAX9 PLUS 160GB
PS2 SCPH-30004R; NoMod+NoLaser
3xSony MC 8MB
MAX/Datel 16MB with Boot-CD
Custom FMCB 1.8b+ Beta-Build, my AIO 0.5, Sony&xRhino-Linux