Just figure on wasting a set of blades and buy replacements right away, in 3 packs it doesn' t take long to waste blades, remember...ONE SHOT AND THEY ARE DONE until you replace or sharpen them and with these blades I don' t recommend sharpening them unless your skilled at it.....

I shot the RM Snypers on 5 Shots recommendation (I' ll never give up Muzzy) and they flew true to me.....now my hunting partners bow, they did not and believe me when I say it is tuned to perfection.....he shot the Snypers and they flew high left of his field points....he still shot the Muzzy' s which we had tuned to group with the field points......

If you don' t practice with mechanicals and only assume, you may be in trouble.