I don't have the 1 pin. But I do have a 4 pin.
I would recommend a dovetail mount. You get 3rd axis and a lot of adjustment. Not much more either.
I purchased mine with the standard travel, not the shorter one. I should have gotten the shorter one. I cannot get the full amount of travel out of my hunting bow. I could have easily saved the weight and went with the short travel ascent.
If you do go multi pin, I wouldn't recommend the vengeance head, if I could do it again id get the surge head.
No input on the single pin, but the body and everything else on the sights are identical.
SandS archery is where I got mine and he has competitive prices, and also the site allows you to see what it would cost however you want yours set up