It depends on what you mean by "safe". Mathematically speaking, every time you bet, you can on average expect to win less than what you bet. More exactly, it is your Win % x Payout x Bet Amount. So with dice at LG, rolling at above 98 or under 1 is 0.01 x 99 = 99% of whatever your bet is. This is independent of any bets before or after, so when run long enough (eternity, but for practical reasons, much shorter than that, usually), the probability of losing everything appproaches 100%.
Now if you mean safe, as in, increase the chance of leaving with having more than you put in the site, there are many different things people do to mitigate risk. I think that there are really just a few things to remember:
- Every wager is a wager that you will lose 1% of, in the long run. This means the fewer wagers, the better for you.
- Proper bet sizing is the most important way to manage risk. True, every bet will have the same return, but only in the long run. If you can't afford to lose that bet, whether you're rolling for under 95, or under 1, you should not make it without accepting the fact that it may be lost. Basically, you want to risk as little as you can to make whatever your profit goal is. For an individual auto-roll, this is often the amount to make up for that wager and any losses since the last win and is usually controlled by the percentage change on win/loss. But if your goal is a 25 coin profit, and you can afford to lose another 25 coins, the mathematically least risky way to do that is to wager it all. And to cut down the variance for a single bet, it is to wager 25 (and change) ETH at 50%. This is why, when rolling manual, I reset the Stats every time it goes green, so I can alter bet size appropriately as I go, as it makes it easier to know what you've lost since you last won. This is usually not in line with wanting to keep risk down, unless you're happy with negligible wins, and it is not very fun to just make a single bet, right?
- To win, you have to rely on variance, get lucky and then stop. Because variance is a short-term thing, don't expect to do it every time, even though you've won every day that week. Great week, though .
I don't personally expect to "win", but it is nice when I do, and I accept it when I don't. It is the entertainment that I come here for, and I don't mind paying for it. Some days, it even loans some of the payment back to me for a while, ha. Plus I don't intend on quitting gambling forever if I get up a bit. I'm sure there is an amount one could win that would be different for everybody that would make them "set". I hope we all are lucky enough to see that.
I should note that there are other ways to increase winnings, such as jackpots, rains/tips, giveaways, etc. I don't factor these in, though, just like I don't factor in any other source of income that enters the wallet's balance.
Maybe it isn't exactly what was asked, or at least not the post likely to be hoping to see coming to this thread, but perhaps somebody will find it informative. Apologize for the long and lecture-like post, but that seems to be turning into my thing, I guess. Ha.