Hey Trap,as a somewhat dabbleing in broadhead collecting,buying selling and tradeing myself over the years.I would for sure go with the BH collecters guide.And if you get to hooked on the book....Oh man you will drop your life saveing on those little gems.I actuly sold most of my heads off when the selling market was better,but now the buying market is good.I only been buying a few here and there,but they are really neet part of our history....bowdoc