Although the sleds are numbered so easy to accomplish I don't think this is necessary. I've set a striped set in a different order than originally created and all it did was list them in a different order in the Disk Utilities drive list. Is there something bad that should have happened?
lol, well, since they are sitting in the optical bay, they aren't really in a bay!
Yikes! I think I might wait until Apple offers SSD BTO on the Mac Pro. They already offer it on the MBP and XServe.
They will be way more expensive getting them through Apple, plus they will probably only offer the slow ones.. like they do in the MBPs