Groundhunter-I am doing the same thing this year. I will be shooting the Muzzy 100 3 blade this year. I shot Spitfires for 3 years, and am going back to fixed. I shot my bow with the muzzy practice blades, and my groupings were great!!! Yo may have to doing some tuning(very minor), but for me it was a piece of cake. I do not want to have worry about my broadhead opening or not when I am on a deer!!!