I have a question for you out there who have or have had lots of different scopes. Which scope gathers light the best? On deer hunts in late afternoon, as the sun sinks slow in the western sky, especially on overcast days, visibility becomes a real issue. Shooting coyotes, prairie dogs, and other well camoflaged critters on overcast days are increasingly challenging. Do you find that a 50mm objective lens helps significantly? As my eyes age, I need all the help I can get. I only have one 50mm objective; the rest are 40mm. I am thinking about changing some scopes to increase visibility, but wanted to hear what you all have to say.