Duke,
You're welcome! Most people see the late movement and equate that to "hook" so do have him take the ball to between 1200-1500 then apply Rough Buff, or something similar. In the Storm polish line, #2 is pretty close to the rough buff, I think.
His pro shop probably has at least one of those two polishes (compounds). Good luck. Let me know if this works, or not, because I've tried mine all over the spectrum (dull to shiny).
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Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah