A G80 with the short delay will fly that fine.
Not very high, but it will do it safely.
Years ago Estes used to say the D12-3 would lift 14oz
Your rocket only weighs 2.5 lbs.

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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 !