I have a '65 Giulia Sprint GT that I race with VARA in So Cal. I am still running the stock single piston master cylinder and have had more than my share of failures over the years such that I am shy about deep braking. I would like to switch to a dual system and preferably one that uses modern cylinders. I know there is the Alfaholics unit. What other solutions have you resourceful people figured out? On a good note, the Alfas are usually behind the 510's and 2002's in B Sedan at many events. This past weekend at Willow Springs we had four Alfas and two of them finished 1-2 in the Saturday race. They looked great as they lapped me.