Due to this, it was often nicknamed as "Misfire" or "Backfire". An advantage to the matchlock firing mechanism is that it did not misfire. If a misfire occurs the trigger can be pulled repeatedly. A bad coil pack may cause a misfire, bad fuel consumption or loss of power. If the pressure is too low, the engine may run lean, misfire, or stall. Senna suffered an electrical problem when leading the race and his engine started to misfire. The result was often a high RPM misfire. In case of misfire, the M320 operator merely has to pull the trigger again. Another concern was a nuclear device floating in the ocean should a misfire occur. Berger had a slow stop and retired with a misfire soon after. Daniels then had a critical and commercial misfire with "Trial and Error" (1997). Siffert also disappeared with a bad misfire. If the barrels were not changed properly, the weapon would misfire. This led the squadron to require gunners to wait five minutes before removing a misfire. He prefers the Model 19 due to its stopping power and reliability against misfire.