BTW if you pay with the coinbase from a fresh block, it should work but won't be pretty. The earliest that coinbase coins can be moved is after 100 blocks (due to coinbase restrictions), but my code won't handle it perfectly. My code is unaware of this bitcoin restriction will actually fail to send it, and start doing an exponential back off, so by the time it sends it to the lotto address will be likely hours after the 100 block restriction expires. If you're planning on mining direct into a forwarding address, let me know and I'll better support the whole thing.