Terry, I currently shoot slick tricks (100) I can't say enough good things about them. They are very accurate. As for the 3 and 4 blade question, I would go with 4. That one extra blade can mean alot more blood loss. I don't think you can go wrong with either my choice would be the slick tricks. The slick tricks also come packaged alot sharper that the montecs. Hope this helps, just my personal opinion though.