can you shoot a group that size at 20-25 yards? I wouldn't change a thing until you moved back to that range and see what happens. you may find that the arrows are to weak, or you may not.
when I'm tuning arrows to a bow, it's a couple week process for me. If your release isn't real clean, or your bow arm moves some, you're not going to know what you have. that's why I like to do it over a two to three week period. After the first couple of weeks, I'll still shoot a couple fletched and a bare shaft at distances out to 40 yards, until I'm sure it's as good as I can get it. Then I'll shoot some field tips and broadheads. If everything still seems good, that's when I'll cut the rest of my arrows and fletch them up.