In my experience I can say with respect to the Martingale that at one point I applied it here at Betfury and at that time the BFG tokens were at a good peak and I lost around 1500BFG which was difficult to recover, at the time the I lost I stopped playing with that strategy, I could get away with 200BFG but when I went over 400BFG I lost and stopped before I had lost everything, so I settled for losing that amount and not all of it, this is something that has to be taken into consideration with regarding the martingale.