You can arbitrage without moving funds here and there and that way keeping costs at minimum...
Would you mind explaining briefly how you would do that? Most arbitrage opportunities I see are only one way, so you'd have to move funds around.
Probably he means doing it with the balancing coins.
Yes thats what I mean, its to simple to explain, but if someone needs an explanation just ask.
When dealing with fiat currency moving fund is to expensive to do arbitrage thus you are using mentioned tecknique to benefit from arbitrage.