After reviewing all the available backtests on www.quantimer.net I decided to subscribe to Quantimer VIX-L just after its launch. The system uses stop-loss and trailing-stop, so losses will be kept low. There is no adding of positions during a drawdown (no martingale). The max. drawdown was about 30% in the past 6 years of backtesting, while profits could raise up to 20%-40% a month or 200-400% a year. Quantimer VIX-L is leveraged on the short side; so it is a risky strategy. Therefore be sure to not invest all your money in one strategy only, I prefer to use it as diversification with other Collective2-strategies. The recommended 25K are OK, but 10K will also work very well. So far this is one of my top favourite strategies on Collective2. The developers are very friendly and do answer quickly to questions. In the long term this could become a strategy with awsome profits. So I hope it will be available on C2 for many many years to come.