The multisig vault makes sense for relatively large stash which would take a lot of $50 transactions to brake down into. Also, as you ask your friends to sign o

The multisig vault makes sense for relatively large stash which would take a lot of $50 transactions to brake down into. Also, as you ask your friends to sign off $50 redeeming txs, they'd see how much did you have previously. Not ideal. In my paper I propose using sequential generation of parameters so you can break down your funds into multiple transactions, but it's only for convenience, your privacy vis-a-vis your friends is still absolute.