Hey Tony... I took about 20 or so with the Miniblasters, and then started adding the Pathfinder tip to them. I think they finally started making that head in a production model later. The last ones I used had the same 1 3/4" cut, Pathfinder head, but had the little "L" wings on the tips of the blades to help leverage them open. I thought those would be helpful given the hole one of those Pathfinder tips might blow into the hide.
I don't think I ever had a deer make it past 50 yards out of all those kills with the Rockets, either.
I leave next Wednesday afternoon on my elk hunt... I've been getting everything out and ready and trying to make sure I don't forget anything! I've got a thread up somewhere on the first page asking for help.