I'm pretty lucky, as I have a huge pile of wood chips to shoot into from as far back as I want. Even at 15 yards, the arrows don't get buried and pull out easily.
What I really like about it too is that my field points are now retired and I can shoot strictly with my boadheads. Last year I was pretty surprised just how different the 'points of impact' actually were.
When theres time, I'll take you and your Dad out there.
Tree