Heehee yumi yes! It is difficult to know what is the limb and what is the riser on those.
Certainly the part above and below the grip is upright at the raise stage and leaning top forwards by 30 + degrees at the full draw stage with very little bend in it,. The bendy parts are difficult to establish just watching but the most obvious is just at the top of the straight part that I would describe as a sort of riser section. It almost looks as if the bow bends at the top of the riser section, with slight bends in the other parts, That really bend bit is about half way up the bow despite being held about a third of the way up the bow. The top limb could be seen as that bit that starts above the "riser".
I would guess that the same principle is at work. Parts are weakened/ strengthened to give the desired results.
The top limb does move a lot to get back to the start. The bottom part of the bow, from bottom end to top of riser moves a lot too, but movement seems to be a little bit of straightening and a good deal of pivoting. Pivoting about the top of the riser, not the grip.
Certainly the part above and below the grip is upright at the raise stage and leaning top forwards by 30 + degrees at the full draw stage with very little bend in it,. The bendy parts are difficult to establish just watching but the most obvious is just at the top of the straight part that I would describe as a sort of riser section. It almost looks as if the bow bends at the top of the riser section, with slight bends in the other parts, That really bend bit is about half way up the bow despite being held about a third of the way up the bow. The top limb could be seen as that bit that starts above the "riser".
I would guess that the same principle is at work. Parts are weakened/ strengthened to give the desired results.
The top limb does move a lot to get back to the start. The bottom part of the bow, from bottom end to top of riser moves a lot too, but movement seems to be a little bit of straightening and a good deal of pivoting. Pivoting about the top of the riser, not the grip.