i'd say 6-12 twists per foot is good, w/ a twist every 1.3" ideal. the single cam comes w/ a point its supposedly more efficeint. i don't know if timing is the right word, but it may be. usually, unless you're just fall perfect in drawlength, you have to move it out of its proper position a bit to get the bow to fit a person perfectly, if the person understands how important that is. a lot of folks think cam position supercedes a bow fitting you, but that's incorrect - as a matter of fact its one of the most incorrect archery myths out there.