Non the less, you can't say the customer is always right, when it comes to thing that could potentially hurt someone, or ruin a business (not implying barrel length could hurt someone but other requests could). I'm not getting into the quality of the jobs, or the qualification of the tradespeople, just stating that, in some cases, the guy who calls himself a gunsmith, might know a little more than the guy that owns the gun, hence why a gunsmith might second guess someones decision to shorten a barrel, below what they believe to be optimal.
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