Limited-time copy trading, starting from 3000 oil. The best time to follow is when floating losses exceed 15%. Dual long and short strategy, with the advantage of light maximum position size, not afraid of any extreme market conditions or liquidation. The main disadvantage is that during extreme large one-sided market movements, one side may be trapped; just wait for the right opportunity and do not withdraw midway. Monthly return is approximately 10-20%. Each cycle lasts about four months; after each cycle, switch accounts and carry over the trades, with prior notice given.