I hit the top of the A34 at the M4 junction at 5:40 this evening and joined the M4 West bound at the same time as a Black Wee, 11 plate, Givi Top box and rider in Hi-Viz.
Was never more than a couple of cars away from you from the A34 all the way to the A419.
Your Givi brake lights flash on and off when you brake, so I guess something is loose there.
I assume the rider I saw is Choppsie, but as he doesn't log on anymore, I will probably never know.