genetics are genetics they cant be changed.... yet, if they are in fact identical twins they have the same DNA,
but while identical twins do share a lot of similar characteristics, there are to many variables to say that just because of identical genetics that a twin is just as good as the other
things like personality come into it, fifita might have a better work ethic, might have a bit more anger and agression, personality is not identical
even something like if andrew trained more legs in the gym and the brother more upper body could effect the outcome of performance
there are way to many variables to say that one twin has the same talent as the other just because of genetic makeup.