More VAX questions (RZ28 jumpers)

Ok, thanks to Zane and Mitch I got my memory installed (and it _is_ really weird how one must order the simms. I now have from "back" to "front" : 16M, 4M, 16M, 4M, 4M, 16M, 4M, 16M for a total of 80M. This makes for a nice tasty VAX! Now I'm installing some hard drives in it (it didn't have any) and I've got an "H" block with an RZ28 and an RZ26 for it. Since I want this machine to be "dual boot" :-) I need to jumper the hard drives to spin up on power up. The RZ26 was easy since it had a jumper legend on the top of the drive but the RZ28 I've been guessing. And by trying several options (moving the jumper and powering up the drive) I've finally moved it to jumper #4 from the right. If anyone knows if this is the correct jumper (or incorrect jumper) for sure, let me know please! --Chuck