Took a while to get the Greaseweasle I purchased working, However, the problem was really just that my floppy drive head was stuck from lack of usage and all that was needed was for me to unjam it (i.e. literally push it out with my finger). A lot of the jumper work were pointless.
Nevertheless, the working jumper settings on my Matsushita JA-551-3 5.25" Double Sided Double Density drive via image:
Notes:
- Ribbon cable connect to the "A" connector (i.e. end of cable, after the crossover).