I think apertures stink and avoid them.

I saw the article by Seyfried years ago and made my own set of Patridge sights for a Ruger #1 which worked great except that they weren't all that good when aiming at anything small. My weapon of choice for years was a handgun and you have to keep in mind Seyfried is a handgunner too, I think he was world IPSC champion back in the 1970's, so remember that before copying his choice of sights.

To do the Patridge combination on the #1 actually took a lot of experimenting with respect to the width of the rear notch with a decent sight picture was a heck of a lot wider than I had forecast in advance while using a 1/8" rear notch and I also made another rear sight with a 1/10" rear notch which was too narrow to pick up quickly. It took a lot of combinations to come up with one that I really liked and when I finally got the right combination I broke it and gave up. (I was making all the prototypes out of soft magnesium because I could make a sight in 20 minutes that way using the tools I had)

So I'd have to say shallow V and gold bead.

Richard