Wouldn't this be a design consideration for the Convair, which is a relatively heavy and slow aircraft, to help obviate aileron drag or adverse yaw in turns and thus give the machine better roll control? Any slight increase in drag in level flight due to 'offset' ailerons would be more than compensated for by added roll stability and efficiency?
Presumably the ailerons are differentials as opposed to Frise ailerons?
Is that of any relevance?