IMBA rule does not make sense to me.. I get the feeling that okes voting for descenders to yield have shoddy technical skills themselves and have never hit Vasbyt etc at speeds of 35k's plus and have never had to try and stop on a sandy corner at that speed... - not easy!!! Simple physics here - it takes alot more effort and risk to stop at 35km/h plus than to stop off at 8kmh in granny gear... IMO, yield to descenders or potentially suffer an elbow in your face, easy!