bentpole when I shot for Hoyt they sent me two tapes to watch. Compounds and recurves being shot in ultra slow motion (something like 6,000 frames per second). You would not believe how wooden shafts and aluminum shafts bend ... or metal risers, sights and stabilisers for that matter as well. We THINK because it's what we see, that when a bow is shot the arrow flies straight to the target, that there is no movement to the bow and that the string moves forward and stops as it comes to brace, when in reality, and I'm not joking about this, all parts bend and wiggle like they are made of jello. Risers flexing back and forth, attachments to bows twisting to and fro, arrows look like snakes flying toward the target and the string going back and forth many many times...and with the recurve archers paradox with the arrows initial bend upon release is truly frightening. I'm here to tell you watching it will scare the hell out of you and make you wonder why archery equipment doesn't fail during every shot.
I lent my copies to someone who never returned them. Wish I still had them. They are unbelieveable.If you ever get a chance to see them, make sure you do, and see if you still feel the same way about archery equipment ever again.