Another video, showing the 140L and PBSF at twilight, along with bar-tip blinkies:
The PBSF (mounted on the rear rack) basically vanishes in the wake of the 140L. If you mix it up with fast traffic, the DiNotte's much harder to overlook, especially if you want advance detection in daylight.
Static shots showing the NiteRider Cherry Bomb, which is on par with the PBSF, compared to a DiNotte 140L.

Cherry Bomb on steady-burn. The PBSF is similar in overall power.