Im assuming you are suing the MN21 bulb in the M6? yeah it is a monster thrower. But my Seraph P7 is getting used more now. Since I can run it on only 3 cells it opens a lot more possibilities.
Very nice beamshots. I had two of these P7 heads (sold one) and really like it. It is a floody beampattern compared to the throw of the M6 but your beamshots do show that the P7 really is a bright one (some people tend to think the floody beams are not that bright because they are missing the tight spot and throw).
Do you know what the constant full power on is for the Seraph P7? I currently have the TX4, and Im getting 30 minutes of constant full power on from a Surefire M900.