I shoot at a monthly black powder competition. I have a Pedersoli Kentucky Rifle and two Traditions. I also have a Kibler Southern Mountain Rifle I'm building but that's another story. My problem is my old eyes. The front blade sight is narrow and I have a great deal of difficulty seeing it. My distance vision is fair to good but I do need reading glasses for anything close in. If I wear my reading glasses, I can see the front sight but the target is not much more than a blur. Without the glasses, I can see the target fine but the sites are very difficult to see. I have tried using bright red and white nail polish on the front blade but that doesn't help. I think a wider front sight would do the trick. The competition requires iron sights and I would like to stay somewhat correct. Does anybody have any suggestions on replacement sites particularly on the front? Also, are the sight dovetails standard or do they come in different sizes? If they are different, how do you measure them to figure out what you need? Thanks all