In my view Judys (I can't talk about SIDs) are nothing compared to RC36s or Z1/2s.
Between RC36s and Z1/2s, it's really down to riding style and purpose. Pace are lighter but not quite as functionally capable as Marzocchi's which are heavier but bomb-proof, a doddle to service and miles ahead functionally.
Between RC36s and Z1/2s, it's really down to riding style and purpose. Pace are lighter but not quite as functionally capable as Marzocchi's which are heavier but bomb-proof, a doddle to service and miles ahead functionally.