Hi guys, awesome!

I tested both pools yesterday and have noticed two important things:
1. The address for coinbase transaction is looking like old non-segwit address. This is probably
    from legacy BTC code, this is not supported here and it would be very difficult to get funds from older
    address;
2. Please note, that if you construct coinbase transaction in miner code, if a block contains 1 or more
    transactions, 90% of tx fees shall be burned, otherwise node will not validate submitted block
    (check pool code for this aspect);