If you have a rock trap then the bottle-neck of the machine is the rock trap. If you install a AFX rotor it will help the feeding through the rock trap but not solve the problem ie "the rock trap". Now if you are looking to solve the rock trap issue put in one of my Razor rock beaters and it WILL feed the rotor smooth and even with all 3 rotors for a fraction of the cost of a AFX. My customers say the they can get 5%-30% more throughput even in green conditions!!! send me a e-mail use Razor as sub
If you already need a new rotor then get the AFX!!! You can't go wrong with it if you would like really smooth feeding thought the rock trap my Razor rock beater will do the trick, it replaces the oem and is awesome for feeding. send me a pm or e-mail thanks.