I don't normally shoot my practice blades because I have dozens of spare dull originals. When I do shoot them they fly the same as the real thing for me. I use 125gr. 3 blades on a ACC with 3-4&quot; feathers at 275 fps. With as much helical as I can put on them. Good luck on your Elk hunt. With a little luck mine will be letting the air pressure out of some Moose lungs in 7 days.<img src=icon_smile_approve.gif border=0 align=middle>