Thanks, I have used it a little. It seems the A4000 config. works with AB: Tower Assault better than CD32.
Add Fast RAM to CD32 Config. Should give same effect.
Microcosm with Fast RAM is nice, as the scrolling background runs smooth as silk.
However alot of games wont work with fastram. On my A1200, I have got the CD32 Emulator to work with all the trimmings and every single game. So they get all the benefit of the faster CPU and RAM.