Very nice heap of classics that would make for a fun launch.
At least one of them should be launched with at least DOUBLE the amount of power one could reasonably hope to recover it with.
That guarantees you WILL get it back.
An original 20n-sec Aerotech D21 in something like an Estes Sprint or Wizard fits the bill.

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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, TURMOIL, FIASCOS, and HAVOC !