The 3-inch group at 50yds is more like what I've heard from others who own them. A close friend of mine who I hunt with frequently owns a Centerpoint but I don't know which model. He says the only thing he doesn't like about it is that the only way to de-cock it is to fire it. So he carries a bolt with a field tip and discharges it into the ground after the hunt.
To decock it i just remove the bolt. Set up my cocking rope and hold both handles with 1 hand. Switch safety off, pull trigger and gently let it go back decocked. Ive had no issues doing it this way. I could maybe see it as an issue for someone with limited strength however