I have heard more about the SharpBet, but I haven't used it personally, so I think if they use it, they will tell us about the performance. For me, a tracking tool is very necessary, you can estimate your funds and your withdrawals. A gambler will succeed if he knows how much he deposited and how much he withdrew from his last time. If his withdrawals are more than his deposits, then he should continue, otherwise, he has to stop immediately. The more he engages, the more he will increase his losses.