No question Centaur is a better built head. I used Simmons Sharks for over 20 years and the final tuning was always annoying - but worth it since they were the best performing heads at the time. Glad to move on.
Broadhead market is a pot of gold for some. It is HUGE money if you ever get to be one of the Thunderhead, "Muzzy moment", or "rage in the cage" heads.
Traditional heads with glue on design is a small fraction. For us we are just glad Centaur picked up the ball.
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