I thought it was less the drives and more the controller. You can image them with something like a Greaseweazle and a normal "PC" drive, so it's probably less

I thought it was less the drives and more the controller. You can image them with something like a Greaseweazle and a normal "PC" drive, so it's probably less that the drive is unusual and more the whole GCR versus MFM encoding and different track layout.