John...I have not heard any but wanted to suggest one additional amp to consider as it has gotten a lot of good feedback at audio shows and my dealer recently heard one paired up with the Verity Amadis and was blown away:
Nagra 300i (integrated version) or 300b (amp version). 20wpc of push-pull Class A. Here is the website:
Nagra - High end Audio
Here's a pic from the Stereophile coverage of SSI 2011:
Here are some show blogs/reviews:
The Audio Beat - CES & THE Show 2010 - Best of Show - Nagra 300i and CDC integrated amp, Verity Audio Leonore speakers
Verity–Nagra | Stereophile.com
Here's a thread on it that Howie started a while back:
http://www.audioaficionado.org/mbl-d...300b-amps.html