You will have to pay the miner fees separate from the coinjoin pool fee. But just the first mix 

Eximpius

Also, having less UTXOs that are coinjoins will be easier to keep up with so you dont mix coinjoined UTXOs. 

Good point... it takes a long time to mix

034678ffb8

bitcoin

Whirlpool Coinjoin pool size - why choose a larger pool size?

Im not talkimg about the TX or Miner fees. Im talking about the Fee for coinjoin Pools. You might want to use the higher amount pools because its less TXs. Like in my example above. Instead of 10 TXs with the 100k pool with 1 million sats, i woukd only have to wait on 1 TX for the 1 million pool. Its gonna take a hell of a lot longer waiting on 10 TXs to go 5 rounds each than 1 TX going 5 rounds. 