I've been hunting with a lyman 66 peep sight and williams fire sight front on my marlins. The fire sight measures 3/32" and when I take aim at a target at 50 yards, it seems to cover most of what I'm shooting at. I've been looking at replacing the fire sights with a lyman or marbles 1/16" gold or ivory bead. Does anyone have any experience with either sight and is it easy to pickup the bead in low light? Which would be better in low light application or woods hunting, gold or ivory? Finally, do you think 3/32 to 1/16 would make a big enough difference in seeing the target better? Thanks for any replies. J-P