.... it looks like your spinnaker luff is too loose ....
x2
and at the 0:38 mark (no spinaker) and onwards the entire rigging is flapping about, the leeward shroud looks to have 10" of movement mid length.
it might be my eyesight or the camera view, but the mast looks to move as well as the shroud slackens and tightens, I think that's also visible as the guys on the trap seem to momentarily bob up n down in the heavier chop
Everything looks too loose to me......
