I can remember sidecar outfits circulating in heavy rain and throwing up spray looking like speed boats .

As Ian has reminded us, the mountain course is so varied that no one can be sure of the weather even 15 minutes ahead.



Diverting slightly from the thread's question, what ever the outcome of the above debate, I still am in favour of returning to the old separate "Oil Flag" and "Rain Flag" system rather than the "Lack of Ahesion Flag" that now covers both hazards.

I am not a racer but experienced riders have confirmed to me that there is a big difference in adhesion between oil and water, even when using modern rain tyres. Mind you, I accept that an oil spill should be preceeded by a Yellow until cleared up.