I have been shooting expandables for about ten years .I have had great success with them , a great kill rate and recommend them to most that ask about them. When I started with expandables I started with spitfires 1.5 in cut and they worked great for years .But I wanted to get a head with a little more durability .So I switched to G5 tekan 1.5 in and had good success with it but they discontinued it.So two years ago when they were discontinued I went with the killizone 2 in cut . I figured since I was shooting 73 lbs and an arrow at about 500 grains 2in cut wasn't a horrible idea since so many people are having good luck with them. But I have noticed within the past two years only 25% of the deer I have taken have had full pass throughs resulting in a tough track jobs. I believe the broad heads are good and sharp and reliable. Have you guys that shoot 2in heads notice the decrease in full pass throughs since moving up in cut size?