Hi,

I don' t agree with the way the test was done.

A 2117 shaft never flew well in any of my bows,it only showed a stiffer carbon arrow matched for the setup.

A smaller diameter arrow will always penetrate deeper in foam in evenly spined arrows.

Thats comparing a stick pin and a pencil, which will pick you the easiest.

I would like to see a 2315 shaft perform in slow motion in the same test,granted it won' t penetrate deeper in foam because of the diameter.