Re: info/reviews on peeps.
I own and have used most modern versions of peep sights. XS Sight systems, Lyman, Marbles, Williams.
I have the XS on my Marlin and really like it, a Williams 5D on the Winchester 94 carbine, Lyman tang sights on the 1894 rifle and some 1892 Winchesters, a Marbles adjustable tang sight on 74 Sharps repo.
I like shooting a good tang/peep sight better, but rifles with tang sights are harder to carry and slightly slower to shoot if you have the tang in the down position. I do agree, that a good peep like the Williams, is just about perfect for heavy cover hunts. There is alot of hunters I spend time with that shoot peep sights on their Winchesters, Marlins, and Rem. 7600's