Filtering on Motorway

[Frosties]

I use hazard lights occasionally, normally if there's no other bikes in my vicinity.
When I gain on a bike filtering slower than me I switch them off as I don't want to pressure them into changing their riding!

You should notice if you're behind a bike they cause a bow wave of cars moving slightly out the way- it's normally too late for the lead bike to have any benefit but for anyone behind it creates a larger filter space.

Agree with Stiggy as above especially the bit about the lead bike. I have to admit that if this situation arises & another bike is behind me then I tend to let the other bike go first to "wake up" the drivers before I follow some 3 car lengths behind......feel a bit guilty with the sacrificial lamb thing buuuuuut it's my safety that comes first.