MFM/RLL data recovery

OK, I posted about this a few weeks ago and now I have some more information. The drives in question are a ST-225 20MB (615/4/17) that came out of an XT (so would have been using a 8-bit controller) and a ST-238R 30MB (615/4/26) of unknown origin. I don't have or even know what the original controllers were, the machines were gutted/given away years ago by the owners. I have a 386 testbed which I'm using, and plan to laplink the files over to another machine once they are accessible. The only card in the 386 is a VGA card. Turbo is off. I have the following controllers: - WD1002A-27X 8-bit RLL - Adaptec ACB-2370A S2 16-bit RLL/floppy - WD1002SV-SR2 16-bit RLL/floppy - Everex EV-346 16-bit MFM/floppy I also have two Miniscribe 8438 30MB RLL drives. However, they were used with the 27X, which means the geometry is ambiguous depending on how the jumpers were set when it was formatted.