Ok, managed to get this working after starting fresh with all patches disabled (as Frog suggested) and no Scalos - YAY!
Saves about 30-50K in CHIPRAM when a lot of icons are open in a window compared to without it. Haven't done comparisions in a Scalos run Workbench yet.
You need in C:
CyberbugfixAGA (CGX-AGA doesn't seem to be required)
WBCtrl (essential it seems)
You need in Libs:
cgxsystem.library
You need in Env-Arc:
The prefs for supergels, planes2fast etc
You need in FBlit:
To disable FAllocbitmap
You NEED ALL OF the following in the the Startup-Sequence file:
Cyberbugfix (after FBlit)
WBCtrl IMT=ICONFAST (just before LoadWB)
LoadWB SIMPLEGELS
Now why didn't you guys just say that in the first place!
Then it will work. Now the testing for compatibility begins......