I can see the beads on all my guns if I take off the FF, even with the base still on.
I also carry a bore sight to double check the FF before each hunt. If I have time to sight in, fine, if not, take it off and shoot open sights.
I prefer the Picatinny mount over the Weaver 93, more slots, and no hang-over.
Most of the EWG's I saw were out of stock, so I went with a Weaver #48339, and they are hard to find right now.
mudhen