If you play x100 without changing the stake per 100 reels, your balance could be negative meanwhile I always change the bet amount in every 100 rolls
this way I can cover the losses on the initial 100 rolls and I also started with a low amount. BTW I agree that nothing is certain in gambling, people are just trying to get more opportunities
if you feel that way and you do benefiting from that strategy
then it's good for you, we do believe from what we feel that we have some edge, not sure since there's no mathematical explanation on it, it's just luck that matters.
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Indeed, saying that changing seeds doesn't improve one's chances of winning we probably must add that it doesn't decrease them either. So, if someone feels good from changing seeds, then why not? After all this practice can lead to better understanding of the mechanics of provably fair dice game. And getting some new knowledge is always a good thing.