Eddie,
antenna match won't cause cmc or eliminate it, cmc is a ballance issue,
i have no paint on this pc to draw Eddie, it would make explaining what i mean easier no doubt,
what i mean above is you want to model the lower 1/4wave on its own without the vertical element above the cone to see if it really does radiate,
if you put resistors across a transmission-line it won't radiate regardless of how bad the match is unless the conductors are NOT perfectly parallel,
you can do a simple test yourself in the real world to prove it with coax or ladder line and resistors,
so why does the j-pole leg radiate? because its unballanced,
one side sees the end impedance of the upper 1/2wave while the other sees a higher impedance air,
it will not radiate if you cut the upper 1/2wave off & terminating the top end with a resistor won't fix it,
to make it radiate you need to make the conductors not perfectly parallel so the fields are not fully cancelled or unballance the load, or unballance the source placement,
the same applys to the vector,
you have some small radiation due to none parallel conductors,
but thats not what we want to see,
if you want to see the radiation caused by cmc on the outside of the cone rather than radiation due to none parallel conductors you must unballance the model by terminating the center conductor & leaving the hoop terminated with air,
if you cannot do that i don't think you will ever see radiation due to cmc when modeling the lower 1/4wave with eznec.
