Fine design. Good execution I've seen simpler devices to find the soft axis. Orienting on softspine is also useful for the same reasons, but stiff orientation seems better to me. Also you can find the "bad apple" in the arrow bin.
Blessed be the Lord, who daily loads us with benefits, even the God of our salvation. Selah. Psalms 68:19 KJV Hunt '06 Darton Tempest. Beman Field 340s w' NAP QuickSpins, NAP KillZone, Muzzy rest, TruGlo TFO Competition '06 Darton Tempest; Victory X-Ringer HV. Trophy-Taker rest, Tox' sights. Backup '96 Darton Wrangler w' Revolution cams Muzzy rest, TruGlo TFO All bow Timberline Optical "No Peep" T.R.U.Ball Sabretooth release.