i have a 4x32 pro diamond. love the eye relief, however fov is pretty small for a deer slug gun. i did shoot a nice 8pt a couple of years ago with it, running past me at 20yds. was a very tough shot to make with the tiny fov. i took it off and am putting it on my turkey gun. i like the 1-4's better because they have huge fov on 1x so if you have to get a quick shot off in heavy cover, its easier to find the deer. i now have a nikon buckmaster 3-9x40 on my ultra slug, mainly so i can test it for better groups at longer ranges, however my tracker 2 has a bsa 1-4x32 catseye on it which has 78' fov.
there is also the 1-5x20 simmons pro diamond which i have on my 44 carbine. great fov and good eye relief, also has the pro diamond retical which is very cool. i would choose this one over the 4x32.