ORIGINAL: DougE
I see no pros and only cons with mechanical heads.If you can't get a fixed blade to fly strait,the worst thing you can do is screw on a mechanical.Wide cutting diamaters don't kill any faster if you double lung em.I've been on hand to see plenty of penetration issues with various mechanicals.Mechanicals have durability issue.
And I see only pros in using a rear opening expandable(Rage, Snyper) and no cons. Both these heads fly like a field point, lose NO KE opening up and penetrate like a fixed head.
I will agree with you if you are using a over the top expandable.
And if everyone double lunged every shot it wouldn't matter what you use, but that is not the case in the real world. The bigger cutting diameter of the Rage (2")will give you a better chance for recovery on a marginal shotover a 1" fixed head on the same marginal shot.
I also know a lot of fixed heads that have a durability issue also.