What are the best low light binos available? Am currently using SLC 8x42's and having some trouble identifying antlers on bucks right at last shooting light. I know my eyes aren't what they once were so I'm looking for something to give me the best low light capability. Would the 8x56 SLC make much of a difference over the 8x42 or is there something better out there for the lowest of light conditions that I should be looking at?