Assuming both soundfiles are stereo, which of these constructions is best for mixing x number of files together? They seem to be produce the same result, at least to my ears...

(Each [*~ 0] is controlled by a slider.) 

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[*~ 0] [*~ 0]

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[*~ 0]

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[dac~]

[readsf~] [readsf~] 

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[*~ 0] [*~ 0]

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[*~ 0]

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[dac~]

Thanks,

Peter