I had the Timberline No-Peep. It helped with form and that but for hunting I didn’t like it. It was distracting to me and not as fast as a peep. Also I can shoot in less light with a peep. I am also more consistent with the peep.
The NO-Peep did help show me form flaws and works great for some but just wasn’t my piece of cake. I would pick one of the No-peep type before the Hind Sight IMHO though.
Tom Miranda shoots the Hind Sight and I don’t know if it’s him or the sight but he doesn’t seem very consistent to me. But hey see if a shop or Cabelas would let you try it first to see how it works for you. Just my 2 cents or maybe 1.