I don't have a hook stop issue but I did drill a LB 6" by 45* and it saved my bacon a few times on a 40' flat shot last weekend. Very easy length on toasty heads and it gave me a backend reaction that none of the field could duplicate.
I have used it after a few games in league to very good results, a little speed sensitive due to the long pin distance.
Would love to see this core in one of the Flexol covers....
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Repetition is everything..