if we use a arabica from a specific orgin and we use a robusta from the same orgin can we get a perfect cup , for example I tried to use a robusta from indonesia and arabica from same orgin I get a cup which I don't believe that result I didn't need any other adding from other sources , is any body try it  , can it be ?

I know that there is some orgins does not have a robusta grows , but if u try for the orgins that have the same I found it good  , and for the orgins which havenot robusta beans or arabica beans we may use from the nearest country , but I don't try that I just saying openion

what is yr openion ?