I've studied that topic on Kreslik at length and I will tell you, it is virtually impossible to make money on a real account with this strategy on a retail broker.. I wrote an EA that uses the methodology and it was quite profitable on a demo account, but I couldn't replicate the results in real accounts due to a combination of the sheer amount of volume you need to use coupled with the times these inefficiencies are open for.

The strategy depends on hedging the three as closely as possible, which requires as much precision of lot size as possible because you are adjusting the lot size of one of the triangle apexes based on the price of another currency. For example, you might need 1 lot of AB and 1xPrice(AB) Lots for BC, so if AB is trading at 1.32452, you need 1.32452 lots, which is too many decimals - you would need 132.45 lots to be as near as possible, which can't be executed, so the closest you can get would be 10 lots of AB, 13.25 lots of BC. So you can imagine the amount of money you need in an account to be able to trade with accurate enough lot sizes, and given these opportunities last for a few seconds at most, do you trust your broker to execute 33.25 lots within 1 second?