RE: no peep and pendulem? What?
I suppose that if a person is comfortable with shooting fixed-pin sights without a peep it would be suffice to say that those same people would agree that you could shoot a pendulum sight the same way. Myself, I have always used a peep. To me, it would be the same as shooting a rifle with iron sights without a rear sight if I remove the peep. I like pinpoint accuracy and have never gotten that without the rear sight. Try it for yourself and see. If it doesn't work as well as you would like, just slip the peep back in.
Just my opinion...
GB
Smack 'em where it hurts!