I started using 100gr 4-blade muzzys when I started bowhunting, the only difference now is that they came out with a PINK one, and that's what I am shooting now. To give you an idea? I shoot about 46# at 25"-not the highest setup on the KE scoreboard. I shot my doe @27 yards, went behind one shoulder, broke the other shoulder and kept going. Double-lunged my buck at 30 yds. Passthroughs. Something I thought I could only dream about until I made it up to a 60 lb bow! I will stick to my muzzy.