I know you decided on Sionics.....
But here is some impressive shooting offhand with an Aimpoint T1.
Rifle Specs:
11.5" Brave Company (BCM) Barrel
BCM Bolt Carrier Group
Knights Armnament URXII Rail.
Aimpoint T-1 Micro
PEQ-15
Magpul CTR Stock
Standard Mil-Spec Trigger
http://www.youtube.com/watch?v=kz3vuRCD02E