Well,
I think that the disc brakes are better in general in poor conditions. I have had both, so I can speak from experience.

However, when you are out in those types of conditions, in the heavy, heavy mud, the mud gets on the brake pad and literally sands them away. So you have a sandwich of mud and metal and when you apply the brakes, it just grinds away the pads.

It is the second time this season that we have raced in those conditions and it happened both times. The experienced mud puppies brought multiple sets of pads with them and some racers changed them every few laps. I just tried not to brake....Ha Ha ha......it actually worked the first two laps.

Ruth