I think all the advise is on the money. I personally would go with the Muzzys out of the two choices. I did not like the Steelheads(although I do believe they penetrate&are deadly),I found them noisy. Had deer ducking arrows when I used them and tested for noise in the backyard shooting them past friends and vise versa. We all could hear a substantial buzzing sound during flight with the steelheads.I even contacted Rocket,but they just sent me a video & claimed it was just bad luck(?)!! Rocket sidewinders,RM Ti-100,First Cut 2b,RM Revolutions,Muzzys,...we shot all of these and heard no obvious noise. Just my $.02 . If you like expandables I have had good luck with Spitfire 100 3b,but I have also taken plenty with Muzzy 3b 100 .