I was not referring to grouping broadheads with fieldpoints, that is an invidual choice based on what they have read, what they agree with, and what their tuning experiences have been or become.
I was responding
specifically to the claims that an arrow that has a spine not matched to the draw-weight, even a " way UNDERSPINED shaft," or even a " wet noodle" can be tuned perfectly." No way!
If you adjust the bow' s draw-weight down, and make a few or corrections with particular gear, until the spine of the shaft or noodle is NOW perfectly or closely compatible, you are not NOW shooting an underspined arrow or noodle. You have matched the bow and spine.
However, in the way it was said, it is claimed that a tweak and a tinker with some of the gear to get an ill-matched shaft or noodle to hit the POI and tentatively group, means that one can PERFECTLY TUNE a very badly matched shaft or noodle for PERFECT flight. No way! You might hit the mark, but you cannot claim that the arrow is PERFECTLY TUNED. [

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I want to see how many good shooters/tuners buy into that claim. Spine match is the critical foundation of arrow flight and CONSISTENT accuracy.