Multiple Object Tracking (MOT) tasks are used to investigate the process of attention allocation. Typically, participants in these tasks must pay equal attention (e.g. track 4/8 objects) to each object. Recently evidence for unequal attention allocation has been shown in a task in which participant are told the probability of each object being probed (Crowe, Howard, Attwood, & Kent, 2019). However, it could be the case that these findings were the result of identity-location bindings (participant needed to maintain the probability associated with each object during the task) creating additional attentional demands for objects in the unequal attention conditions rather than of unequal attention allocation per se(participant might, for example, only track one of the objects on a subset of trials). In order to control for this possibility, the present experiment used two distinct tracking areas associated with different probabilities of being probed, thus negating the need to maintain probability-identity bindings. Eye-movements of participants were also recorded, to More directly measure attention allocation. As predicted, participants’ tracking performance was better (i.e. lower average error) in high- versus low-probability areas, although the ability to which participants can do this in a more fine grained way is still unclear.