I did it sometimes, when I got a lot of win and my fund already back and I'll save my first fund then the rest I put all money in one betting. Most of this way I found lost and I have got one won so far, this way it's indeed effective to gain a lot of profit and no need a long time to get it. But if I have a doubt to do it I'll stay to bet with small amount and do it slowly.
Why you want your profits to be all in,when you care about the profits.You should try multiple bets where you have better chance of winning.But eerything depends on our luck it may happen at one all in bets or just many small bets but at the end we need to accept what we make from the gambling and don't regret your decision later if you lost all money.