@ckillerh:
The J301-jumper must be closed for DF1: to be recognized. Other than that, you havent changed locations of the floppys on the cable, I mean: are the floppys connected to the same connector on the cable as they used too? In my A2000 DF0: is connected at the end-connector of the cable(with the cable-twist just before it) and DF1: is connected to the middle-connector.
Both drives are chinon drives - the same model.nr printed on them (FB-354), but they don't look identical. DF0: has 3x2 jumpers while DF1: only has 3x1 jumpers. To make a qualified guess - only the bottom row is important as that is the row that is jumpered on both drives. If you look from the back of the drives - DF0: has the middle and right pins connected jumpered and DF1: has the middle and the left pins jumpered. Can someone confirm this or shed some light on the jumpering?
/Patrik