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ok, preload, is how far the limbs travel from unstrung to strung,So, can you englishfy this?
Sounds interesting, but I'm not grasping the lingo.
so with this understanding.
the reflex in the limb (forward pointing) casues the limb to flip flop back and forth. (take any reflex/deflex limb design, and drop the BH to 3" and it will flip top to bottom in a horrible way)
so with heavy limb pad angles. (pointing the limbs at the archer) that you see on recurves. such as the Bear riser. the longbow limb points soooo far back. that you need a high brace height to give enough preload to open up the reflex. (straighten the limb out)
so if you point the limb forward at the limb pocket, you can preload the limb more, but still have a lower Brace height.
So the limb straightens up.
if you look at all hybrid/R/D bows, the limbs come dam near straight out the riser.
if you look at recurves, the limbs are slopped back to the archer.
These two aspects don't mix.
Kegan (I think) has been struggling to get a lower BH, to become stable due to poor preload of the slack angles. giving a floppy bow.
If he increases the BH, he chokes off the energy in the bow. giving poor performance.
kick the limbs forward more, and you get a solution that works better.
You cant do that with the limb angle due to the need to run a recurve limb, so our solution was to thicken up the limb butt rocker. as per the pictures.
This still gives a Longbow limb but its more forward pointing. and this means that the lower BH still has the preload, without killing the limb shape.
a bow needs to look right, it needs to perform well, and it needs a simple solution to the problem.
That's the most simple we could come up with.