Conflicting advice with zpools and the use of /dev/did devices with HASP

I've read that you should not use /dev/did devices with zpools/HAStoragePlus resources, and I've also read that you can.
From the EIS checklist (we're a Sun partner):
•
It's recommended to use cXtXdX devices for ZFS.
• Do not use did devices!
On the other hand, the Sun doco states that you can (http://docs.sun.com/app/docs/doc/819-2974/gbspx?a=view):
you can create a zpool using a disk slice by specifying a Solaris device identifier:
# zpool create HAzpool c1t8d0s2
or or you can create a zpool using disk slice by specifying a logical device identifier
# zpool create HAzpool /dev/did/dsk/d3s2
Can someone tell me which is correct?
I've configured zpools under HASP using did devices, gone through many failover tests and have had no issues at all.
James.

Hey, that screwed up my nice formatting... it looked way better in the editor before I posted!

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