Great news. It is now working on A1200!! Silent computing - its the future!! :-)
I tried a multidisk game and a single disk game.
Also works with IDE/Compact Flash.
No USB stick - boots from IDE. Place USB once in Workbench you can read the disk(fake disk!). Restart with USB stick and it boots from Fake Floppy.
Just need a piece of paper (or better memory) to know what is on what track!!
Next job, fitting it into the A1200. I think by removing the circuit board from black case and a short USB Male/Female cable (or resoldering connector), plus move Track Selector buttons you can get it all in the Disk opening without having to cut the AMIGA case.
The segment display is already on an extension.
Thanks for all the help H.M