My first Cherokee-D was built and LOST within 2 weeks time in 1978 on a D12-7 and that idiotic 18" chute.
The only D engine that I regularly got them back on with a 12" chute was the D11-9.

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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 !