If you play regularly on slots, testing the waters mentioned by the user you have quoted by starting at a small bet until finally feeling the tempo is working sometimes. Of course and obviously, gambling is not predictable but will you just play without doing anything to somehow increase the chance of luck?
I have noticed that slots are sometimes giving most wins depending on a bet and if you feel it's time now to increase the bet amount, that would be another testing the waters scenario. It's not wrong to give it a try and if it doesn't work, then it's doesn't work. Simple as that.
The players should understand the game,use the game with small initial and move to the next level on the demand.Because making money in the job or gambling doesn’t easier.We often think huge to donate the money to the begging people,our inner mind expect some of the physical illness to them.So the money from the gambling is also the money of the losing people at the same time you are playing.The gambling site never give their own money,it can be used to explain using the tyre of the bikes.When one side of the tyre was on top, the bottom side at the down.So the money was circulated between the winner and loser in every single bet.