Interesting bow and quiver. I will attempt to remember that book and look for it when next shopping for reading material for next work season. Interesting that I also use a Howatt, "The Stick" according to the markings on the bow, my first a 45Lb and the newer one (By Martin) is a 55lb.
Howatt bows are always heavier than marked because they measured from the belly of the bow just above the shelf, instead of at the throat of the grip like virtually every other maker did/does.
