I have used x3 and +100% on lose
Have made 0.5 BTC to 12 and 20 before but you need a lot of luck on that tho
Even with x4 and x5 .
Wow thats about 1000-2000% of profit you maked , hows that work at the end for you ?
I got greedy and lose them all the end
I was betting bigger and bigger without any strategy .