Yep, you can stand them on the point and spin them. You are looking for broadhead wobble. I install my inserts w/ broadheads attached to them. If they wobble, I spin the insert 1/4 turn until it doesn't wobble. A BH that wobbles is a son of gun to tune. They just don't fly good at all. Yes, you can also insert a different head. You want ZERO wobble in your BH's

The commercially available arrow spinner works very well, but so does standing them on end.