Whats the advantage of solo cam system which we usually see on mathews bows? Almost all of the bow manifacturers are american and the %90 of the archery bazaar is relied on of bow hunting.the most common way of bowhunting is to wait fort he pray on the treestand on a tree. The cam on the downside makes the most amount of job and you may lay this cam on your knee and wait on the target for about 3 times longer with less vibration.