The best way to escape this interference is to clearly use the end of combustion in each transaction so that we can go to have a large combustion when the market transfers are opposite. If many of us are investigating this news besides the market's hobbies after that many of us cannot face this kind of problem. This happens because they have no experience other than expertise. and the basic use is to maintain a strategic distance from the exchange that removes each other. For example, realizing that EUR / USD and USD / CHF are moving close to extraordinary, there will be no good reason to shorten both positions because they must cross each other out ((disadvantages + benefits)