Update...

I got in the mail recently an LCIII with a ZIP drive and also a SCA to SCSI50 converter. The new drive and converter works in the LCIII with the ZIP drive set to terminate.

Unfortunately the IIvx doesn't seem to recognize the drive with its stock SCSI cable (3 total plugs). If i use the tiny one that comes with the LC III it does work. Either that cable is bad or there's some SCSI voodoo goin' on! :-/

Lemme know what you guys think.