BY the way, how does one "spin test" a spitfire..?
don't the closed blades get in the way..
Or do you mean opening the blades and then spinning on one's palm..
Problem is that the head of the spitfire is not round but triangular and very sharp.
I realize that spin testing is critical..
Is there some other way to spin test spitfires..
thanks

Can't you spin them on a table top, standing arrow point down?

I hope you get this worked out. I had the same problem 2 tears a go. Its very discouraging. BTW not to nock anybody, but 3" groups at twenty yards will be just fine on a deer.

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that line is three inches. I think you'll be ok.