I tend to use my TT for productivity work and my Falcon just for music, so I stick with TOS 4.02 as my OS on the falcy and MagiC 6 / Thing! on the TT. I do have MagiC and MTOS on my falcy, I just don't use them that much. MTOS pretty much sucks, and MagiC is a little unresponsive on my machine (it only has 4MB though) especially in high colour screen modes.