I have just seen the GRIV DVD 'Professional Tuning Techniques'. Ok, so he can't count past 3 - anyone who has seen the DVD will know what I mean - but most of it is pretty good stuff, especially the section on string making.
GRIV strongly recommends shooting a arrow with enough overhang for the 'node' to be directly on the launcher (or, next to the button). He also shows a way of finding the 'node'. This raised a few questions in my mind:
a) Do these 'nodes', ie points where vertical (or in the case of finger shooters, horizontal) vibration is practically nil, actually exist at the moment of the shot?
b) If they do, are they where GRIV says they are? He holds the full length shaft with point pushed in against a hard edge and twangs the shaft, moving the arrow backwards and forwards. The 'node' is the point wher the shaft hardly jumps against the edge. He then says something like "this shows the node of this shaft/point combination is 2 inches behind the point, so I'll cut it so 2 inches are in front of my launcher".
c) Does any of this matter in practice?
Should we determine shaft length like this?
I'm not looking for a mathematical discussion of wave forms, harmonic frequencies and columnar compression - been there, done that, didn't even understand the T-shirt.
What I want to know is whether anyone out there actually cuts their arrows on this basis and does it make a difference
in practice.
Thanks Folks.