10-15 bars must be counted from the first time the trend shown up.
Wait for about 5-6 bars, 50% of all bars (10-15 bars) to see the real trend then pick the rest bars with Open position.
RESULT: EU MAY 21.2015/15:00(MT4)/12:00(TradingView) UP 15 bars accomplished. Finished. https://twitter.com/SeremoniaFx/status/601409386569998336