klh007 - I have a VAC Signature Mk2 SE, going to a PassLabs X250.8 to B&W 803D4's. You have me very curious to try how it will sound if I go straight into the amp.
I just got the M3 a week ago, and today received the firmware 1.14 upgrade. When I install this weekend, I will also try connecting direct to amp.
Did you consider selling the VAC if the SQ is so close?