The real dynamic is between USD/EUR/JPY - BTC - ETH/ETC/XMR - ALTCOINS
Nice plan. Sad that only using Polo do not allow the "Turing complete" hehe
With this, we'd back to arbitrage, and this now might be interesting, different from alt-exchanges arbitrage.
Other FOREX to USD and then USD - BTC in 1trader
BTC to Alts in one of the exchanges Gunbot operates
However, we are back to arbitrage main problem: fees.
1Broker - 0.0015 BTC per BTC withdrawal. No other fees
Polo - 15% / 25% + BTC withdrawal + miners' fee on withdrawal
Using 1Broker would make this strategy only available to >=1BTC trades.
However, it might still be valid.
Gun's calculator is needed more than ever.