Slow motion recurve bow arrow flight at 1000 FPS - nocking point height effect

Nocking point height varied from 0 to 15 mm above the arrow rest to see how arrow behaviour in the vertical plane and clearance are affected.
For more info, see here: https://nocktopoint.com/2021/03/09/no...
Camera: Sony RX100 MK4 using JCC SR-F2 wireless remote for triggering and 500W halogen light indoors. Frame rate 1000FPS, shutter about 1/15000s. The video can be slowed down further using youtube's settings.
Bow: fiberbow 6.3, 41 lbs, tiller 0, shibuya magnetic arrow rest. Top nocking point only.
Arrows: ACE 620 with 90gr points.
Archer: finger tab with 1.5mm cordonvan face and 2mm noene backing, 3 finger release with the index finger above the arrow.
The correct nocking point height for this combination is about 9 mm based on bareshaft flight.
For reference, at 30 m a 15mm nock height gives bareshafts ~18 cm low, and a 1 mm nock adjustment moves the bareshafts about 3 cm relative to the fletched arrows at this distance. Over this adjustment range, the relationship between the distance between bare and fletched arrows and the nocking point height is approximately linear.