Here's my take. Have always shot thundeheads. This year I tried g5 montecs. I've never lost a deer. First 2 deer this year were lost with the first being hit twice. The second I found after 16 hours just because I wanted to know what happened. Arrow entered on a perfect 20 yrd broadside shot and exited out the far back leg. I stopped using them at once. Went back to thunderheads and am back to usuall.3 deer taken with 2 poor shots none going more than 40 yrds after the shot.

There are reasons why the head failed. The most important is they are not nor can they ever be razor shap unless they are changed. The cutting angle of something razor sharp is between 14 and 20 degrees. The g5 is 60. I don't believe any of the heads similar to them are any different. HellrazorsandSlicktricks included.

These words are very true: A razor sharp head is a must and can make bad shots recovered animals.

FWIW Spitfires have been proving that they do very well. People are recovering game using them at a very high rate.