I do it normal on the racecar. RR, LR, RF, LF. One corner at a time. The second master provides some resistance, but the bias bar directs most of the travel to the master with the open bleeder.

-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course