Hoyt' s literature not withstanding, I look at the Cam and a Half (and other hybrids) as having many of the advantages of both the single and dual designs with not as many of the disadvantages. You are always going to have to worry about timing with any given cam system if you want optimal performance and accuracy. The cam and a half system is no different. What you tend to get are the speed and draw cycle of a dual cam with the solid backwall and low noise/vibration tendencies of a single cam...if I had to put in plain terms.