The D11-9 had about 3-4 less n-sec total impulse than the D12 to accomodate the longer delay.
It often was just right to be able to get a Cherokee-D, Skybolt, or Goblin actually back.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !