Lets See the pictures above
when we are lucky in roll and the numbers out more than 9886,i'm sure we get a bigger payout
after learning the pictures above i take conclusion the numbers out with the percentage
1.number above 9886 only 10% out
2.number between 4750 and 9886 only 35 % out
3.number below 4750 is 55 % out
based on that percentage i assume we choose "BET LO" with martingale system like the pictures below
1.Payout 2 times
minimum stake 10% from balance
example: 0.00010000 BTC so the stake you should choose
Stake 1 = 0.00000100 BTC if lose go to next stake with double from first stake
Stake 2 = 0.00000200 BTC if lose go to next stake with double from second stake
Stake 2 = 0.00000400 BTC if win you have to go first stake and if lose you must double it until you win
remember always choose "BET LO"
if you are playing patient and consistently it would be better than typing captcha in faucet
have a good try