Ok.. As I posted before I was shooting blackhawk vapors & with helical. Well done with that and went back to offset with a new arrow; Easton Full metal Jacket. Awesome arrow and am back to shooting great groups. Just one question (Newbie with these arrows).

I put a broadhead on and need to spin test it. I got the stone for lining up the blades with veins, easy enough. But how the heck do I spin test these if i cant heat them up? can you?

The pro shop told me I shouldn't have to spin test and that was the point for that type of insert. Is this true or just something just said to make it sound good?