Did I just find another 5.7X28 buddy?!?!?Hole size correlation to incapacitation? About zero. The 9mm if it fails to expand should still give fmj penetration. A round nose FMJ in any caliber is very bad. Worse if it’s soft.
Given the choice between two incapable loads that will require follow up shots, I’ll go with capacity.
Purple it if ya want to I don't care.