It's hard, I've tried it, and it does not work, most of the exchange will quickly respond to rising and declining bitcoin prices,
uh? exchange don't rise and decline the value that is something that happen because of supply and demand, yes there are manipulation, like with poloniex, or fake volume
but it's not somethign that rigged you know, arbitrage like the thread started want, need to be done not manually but with a both, that make around 0.1%-1% +ev moves, each trade
there are some example on youtube, some users are selling their both, i didn't try those, but i guess it need at least a try to see if it's working or not