In my view, there is no perfect risk management for all traders because every trader has different view about how much amount to risk in each transaction and also how much target of profit to reach in each transaction. Some traders prefer to use risk reward ratio with risk setting is higher than target (example : SL and TP setting = 2:1, 3:1, etc.) with consideration that SL will be harder to reach and trying to win more than losses. Another traders prefer to set profit higher than loss (example : SL and TP = 1:2, 1:3) with consideration that it's still possible to gain profit when win is lower than loss as long as loss ratio is not more than 60%. So, the best risk management is depending on trader's consideration which made them comfortable in trading.