I have to agree not to worry about arbitrarily short runs. I have always worried about them but never actually heard a difference.
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One thing that my trusted audio guy (30+ years) recommended was doing the long run between preamp and amp instead of speakers and amp. Then if I got dual mono amps use really short < less than a meter cables. He said this gets you some real advantage in frequency timing (?) or something like that. I did not go with monoblocks, so didn’t pursue understanding the advantage. If I upgrade to monoblocks I’ll revisit it. I trust him... he has implemented probably a hundred high end systems. These kind of advantages are not likely to be heard in systems < $50K, which always has to be one of the considerations. What level of performance are you at, and going to be, and when?
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One thing that my trusted audio guy (30+ years) recommended was doing the long run between preamp and amp instead of speakers and amp. Then if I got dual mono amps use really short < less than a meter cables. He said this gets you some real advantage in frequency timing (?) or something like that. I did not go with monoblocks, so didn’t pursue understanding the advantage. If I upgrade to monoblocks I’ll revisit it. I trust him... he has implemented probably a hundred high end systems. These kind of advantages are not likely to be heard in systems < $50K, which always has to be one of the considerations. What level of performance are you at, and going to be, and when?