It isn't too late to go with the dry hatching method if you want to. Either way it is VERY important to get a hygrometer, and another thermometer to compare the one on your incubator to (if it has one). I just purchased a baby thermometer that is tested to be accurate within 2 tenths of a degree, so I could test my thermostat and all my other thermometers against it. (I only have 5 so far, not counting the thermostat...)
If you decide to go with "dry" hatching, just keep in mind that you don't actually want no humidity at all. Most that I have read about maintain it at about 30% humidity or so. You may or may not have to add water to achieve this, depending on your climate and many other factors. Then at lockdown, you up the humidity to 60 or 65%. The best way to determine whether you need more or less humidity is to check your eggs though. You can find charts showing how big the air cell should be for days 7, 14 and 18. If yours look much smaller, you have too much humidity. If yours look much bigger you have too little humidity. If they look about right, then keep doing what you're doing.
You mentioned in another post that your incubator was supposed to autoturn, but it didn't seem to be doing so. There should be a way to turn the turners on and off, separate from the heat control, so you can turn it off for lockdown time. Have you looked through the owner's manual to see if it has instructions for switching the turner on and off?
