Hello. My name is Josie Hill and I've been involved in MIDI since the mid 1980s when I wondered what those sockets were on the back of of my Roland JX3P. Roland Japan would not supply me the format of the MIDI memory map dump from a Roland TR707 drum machine because they opined it would be too hard for me to understand! However, I managed to reverse engineer it.
Now, 30 years on, I have a similar problem with the first version 1.1 Fender Cyber Twin PS-393. Can anyone please supply me with the format of the 55 byte data block per preset?