Lengthening forcing cone
There is much dicussion about lengthening forcing cones. Some say it is great, others say it does nothing. IMO, it is like hunting for Bigfoot-you might not find him but it doesn't hurt to look.
Here is my question: does anybody out there of any real study/testing showing the actual effect of doing it. Not I'm looking for any mere opinions but an actual study.
Thx, Ray
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