It seems the two technologies are opposites in a way. MO is an a optical medium aided by magnetism for writing, whereas the Floptical is a magnetic medium aided by optical tracking. Another opposite is that MO is very reliable.
Interesting... I never knew the difference.
I had (still have) an LS-120 floptical in my A1200.
I also got a Ricoh Magneto Optical drive for my A3000 around 1990 which cost me $5000.00 with all the disks totalling over 8GB in storage, which was like 7.5GB more than the largest Amiga BBS I knew of at the time 
I did have my BBS running on OS/2 machine. I had a bunch of (used) Microscience 85MB MFM drives (retired from Novell Netware servers). I formatted them to 120MB using RLL controller. I added a secondary RLL controller. I remember having to change the default base address and cut the trace for the IRQ on the secondary controller.
