Ok I guess my first question would be what is your setup. Rage BHs are mechanical so they rob some of the energy of the arrow opening up. Pass throughs depend on alot more than speed. You can shoot a realy light arrow realy fast and not have the penetration that a heavy arrow traveling much slowwer had. If you don't believe me get an old heavy 2117 or the likes and shoot it into something hard. The diameter of the arrow trys to slow it with friction into newer targets but it definatly hits harder.

If I were to guess your shooting a marginal weight / arrow weight for the rage BH's Speed of the bow realy doensn't matter its only realy matters for flat shooting arrows. Kenetic Energy is key. Super light arrows and lighter weight bows are a bad combo, even heavier weight bows suffer from loss that the mechanical robs. Cut on contact fixed blade BHs don't lose near as much energy as they don't have to open.

Rage BH use less energy than others but the fact is they still use energy.

Let us know what the setup is maybe someone can figure yout KE and see if it is the case.