Sherod, I don't necessarily need to stay with VAC amps. I looked at the Avatar, but in it's present configuration, I don't believe it has the stones to drive the VR4 HSE. One thing I really like about the VAC Phi is the ability to run it in triode. It has more power in ultriode, but it has more sweetness in triode.
I'm considering a McIntosh SS amp or integrated amp as an alternative.