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Love my sonic heads, you have to make sure and tighten them together with a good wrench. Fly identical to target tips and I have seen them go through a whitetail lengthwise still in tact.
Yeah, that's my only beef with them, they come apart easily if not properly tightened. Otherwise, I like them because I don't have to tune my bow differently for target shooting or hunting.
Love my sonic heads, you have to make sure and tighten them together with a good wrench.