Ignition boxes - worth it for the effieciencies

Try Mallory. Had 2 MSD fail on me (May Suddenly Fail) with no warning. Bought a beater Hyfire V (P/N 690, google it!) and its worked longer than the 2 MSDs together. And this thing is probably 35 years old. Has CD multispark and adjustable rev limiter built in and has 3 modes: electronic/points/crank trigger plus its as big as a 1970's lunchbox with thermos top!