Here s my constructive criticism in meeting all the requirements....
. "It must be capable of staying braced for hours on end, day after hard hunting day, and not lose perceptible cast. The arrow you shoot in the early morning should strike the same mark in the late afternoon at a hunting distance"
Id be concerned with the hickory losing cast after being strung all day multiple days in a row in a more humid climate in a pack hunting situation. I guarantee you that bow wood lose some more cast after that scenario and your unstrung profile wood go to just straight at the very best.
And my number two concern wood be is it a smooth pulling bow out to 28"? Your string angle suggests you are hitting a wall at 28",and a bow that had even flipped tips,bent thru the hsndle,or a R/D design wood be smoother and more forgiving on release than a just reflexed straight side profile with a stiff handle.
Other than that it is a good candidate for an ambush type hunting bow,and its well made for its wood type and design.