The seat post I have should be the 1.1 version "Carbon Aero Standard Offset Seatpost - 920307" which came off of a 2012 B12.
According the Felt USA website:
Carbon Aero Standard Offset Seatpost - 920307 • Compatible with Felt Carbon Aero Series • AR Series (2013 and older), • B Series (2013 and older),
• DA Series, (2010 and older) • Carbon Monocoque Aero Construction • CNC aluminum head with micro-adjust saddle clamp • Fits Felt Carbon Aero Frames Only • 295g (310mm) • Available in 5mm Standard Offset • FESP-06
You might want to confirm with SD or that other Felt rep who has been responding lately in the main forum.
No pic right now (will do that when I get home) looking to sell not trade. I already have a setback seatpost I purchased this past winter. It looks like the seatpost I have will work but can't confirm 100%.