id like to stay under 650 if i could but i can probably go up to 700 if needed <| sep |> because uspez just reversed it obviously . <| sep |> Due date ? You really want F 1 and FE on the same circuit ? Pretty much every need between them are opposite . <| sep |> In order for the transactions to impact the mempool in a wide way , these transactions would need to be widely broadcast , which means they would be available for any miner to include in a block . If you only broadcast the transactions such that a single miner could see them , it would not affect the fee market because they would not be visible in the mempool to most nodes . Also , the miner would have an opportunity cost of participating in this attack , namely , the value of the other paying transactions he could be including in the block .