Team MS- Mondraker is running SRAM shifters this year. Andrew Ward, Ragot's mechanic, prefers to add a clear, protective layer to the shifter housing as it exits the chainstay. This is a trick that more than a few riders use on the World Cup level.
I've been doing the clear thick tube over the final loop of RD housing for years. it helps protect it from getting snagged by rocks and adds a bit of push against the whole body of the mech so it won't swing against the frame backwards