FYI of what a MS tail lignt working in conjunction with two PBSF side by side mounted horizontally looks like in the night. I finally did a rear flashing light setup which I am happy with the way it works (the duck in the picture is my Mascot ). Basically it is nothing more than a MS tailight with the addition of two PBSF side by side next to the MS but turn out slightly for better lumination to the side. I took a video of the combo. The street had a 1/3 mile of unobstructed visibility. I took a daytime picture of the street, however I was not able to park in the same spot when I did the video at night and I was actually farther back near the bend of the road. I also added a third PBSF on my helmet so that you can see the difference of the MS and PBSF when they are further apart of each other. At the end of the video, you will see a car headlight coming toward the camera from a distant to show how far I was in relation to the camera. The additional random flashes from the two PBSF added some extra touch to the flashing pattern of the MS light.