If your asking about the insert washer I can tell you my experience. When my son went from a youth bow to an adult bow I also decided to try the inserts to save on the cost of upgrading from 75 to 100 grain broadheads.

Needless to say the grouping he got with the inserts and a 75 grain broadhead was not that great. We know this because I let him try some of my 100 grain broadheads with the same arrows he shot the 75 grain and inserts. His grouping with the 100 grain broadhead and no washer was a vast improvement.

In my opinion your better off just matching a good broadhead to the arrow he is shooting now. forget trying to use the 75 grain and a washer.


Dave