http://btcmixer2e3pkn64eb5m65un5nypat4mje27er4ymltzshkmujmxlmyd.onion/help/faq
We are going to create an article about Bitcoin mixing, including
suggestions on how to best use Anonymixer, our initial suggestion is
performing N-to-M based trades, where the number of Output Transactions
is different to the number of Deposit Transactions,
i.e. 2 Output Transactions to 1 Deposit Transaction, or 1 to 2,
or 2 to 4, etc.