The best compound bows are those that use a levering cable system that bends the limbs. The limbs of a compound bow consist of the upper and lower sections that provide the strength and flex to eject an arrow. The limbs on an efficient modern compound bow are stiffer compared to the re-curve bow or the traditional longbow. This is true since the compound bows are not made using wood. The point of view on the energy efficiency, wood does not make the efficient compound bow material of manufacture.
The additional stiffness in the compound bow is counteracted by the levers and pulleys that these efficient high tech tools have. It can be impossible to flex the bow if these are not present. Mechanical advantage is gained as the string is drawn back, until the point in which the peak weight is achieved, and energy is released to eject the arrow. You can learn more about this with the help of The Best Compound Bows.
The other beneficial factor of the modern compound bows is that they can be used in any weather. Most of the woods absorb water; therefore, using bows made from wood can be tricky in rain or damp weather. Besides, the traditional cannot be used as well in dry weather as the natural oil tend to evaporate and the wood cracks.
Some can argue that which are best materials to be used to make a good compound bow. Also, some have always raised questions that in the market, which are the best compound bows. As long as a material can be used in the construction of an aircraft, ranging from aluminum, magnesium or their alloys, they are good for the manufacture of a good compound bow, and that is the solution to all these arguments. This is something you'll want to learn more about.
The strength of a modern compound bow is contained in the limb. The pulleys or the cables store no energy. Also essential is the construction of the cams and wheels, as they must move the strings to function smoothly. Modern compound bows do not use strings; instead, they use cables made from polyethylene, although the term string is often used. The cables that can hold much tensile strength are made not to stretch, as stretching lowers the cables efficiency. High tensile steel is used in some old-fashioned cables, though the good quality bows incorporate the cables made from polyethylene.
There exist a few different types of compound bows with hard or soft cam, and the cams control the speed of the arrow directly. The softer cams are more applicable in compound bows normally being used by the beginners. You can learn about compound bows in this article: https://en.wikipedia.org/wiki/Compound_bow