I have always been a one eye shooter. Prob force of habit from early pistol shooting compition. Since I now wear script glasses I have noticed that the clay is now blurred when I close my left eye, but clear when I view it with both eyes. Will a dot on my left eye help cure my problem by allowing me to keep both eyes open? Have heard both pros and cons on the subject. Also is there a proper spot to place it on the lens? Help this old fart to improve his shooting - Thanks - TOM