[Bounty] How-to Multi signature transactions

[CIYAM]

So when you see this it looks like only x/<=3 is standard, but in fact that only applies to a traditional, non-P2SH transaction. If you're doing P2SH, your script isn't TX_MULTISIG at the point where it's evaluating that. It's TX_SCRIPTHASH:
https://github.com/bitcoin/bitcoin/blob/0.9.0/src/script.cpp#L1414

Ah yes - I forgot all about P2SH stuff but that makes perfect sense to me now. Thanks.