Well i notice you look on problem... hmy, from rather diferent point of view then most of people. Even though it is intereting to read, I haven't heared about most fo this stuf stil im rather sure we can't just take random information, place it next to subject we are interested into and force any kind of conclusions. If they are or wrong we set aside and just continue our analyses without proper look back, since after awhile we might notice we are just weasting our time. Besides when it comes to currency i think Bisantium history is much more interesting. More intervention and more dynamic situations, not to mention there were actualy few possibility when it comes to usage of different coins.