For elk and large game, I prefer a cut on contact style. I had weak blood trails with a two blade as the hole would close up easier so I went with the 3 blade coc style. I switched to the razorcaps this year and they proved deadly on both an elk and a P&Y bear. Both were complete pass throughs and left tremendous blood trails. On any style arrow and setup, I will always go with a cut on contact with as close to a 3 to 1 ratio as I can getfor optimumpenetration and flight.