the guys on the ExCal forum say that even the limb angle is the same on the different modles that the only difference between the different modles is the length of the rails..
which still does not change the fact that they are an excelent crossbow the best manufacrured recurve crossbow on the market..
and the fact that the parts are the same on the different modles is a big plus because if a proshop has say a riser or riser mounting bolt for an Exomax the is also has one for a Phoenix.. so all the parts from modle to modle is a plus a big plus..