Once your training, specifically during the Half Moon phase, starts to feel more comfortable and manageable, it's advisable, based on the specific drills and exercises you're focusing on in your training regimen, to progress to utilizing the adjustable lenses. These adjustable lenses are specifically designed to provide you with a finer, more precise focus on your targeted drill or exercise. When you are adjusting the degree of the lenses, it's important to note that each direction you turn the lenses in will effectively block the adjacent peripherals, thereby enhancing your ability to concentrate on the drill at hand.