Btw,most people who run their 3000 without a battery cant put the scsi in synchronous mode,which is good for a nice speed boost because the battery keeps the scsi settings NVram from being lost.
The 3000 SCSI is very good for 50 pin SCSI. I get 4.5 MB/s with synchronous and newer revision SCSI chip which is as good as it gets without "fast" 50 pin SCSI. It is low CPU usage and fast booting. It's better than a 2091 with upgraded SCSI chip in a 2000 with 030.
