they did ok in my broadhead tests, not great not bad. That said last year I shot two fox and one whitetail buck and all resulted in fully open heads, and short tracking jobs. The deer shot was not a passthrough as I hit the offside shoulder on a steep angle, but the buck only made it 50 yards before falling over dead. With your Ke levels and for deer size game, if you like the design I see no reason not to use them.