One enhancement that might help in this situation is to build a call queue that allows multiple callers to be stacked and worked either sequentially or from a pick list by the operator. The progress of each contact could be maintained so that in QSB or scatter situations, contacts could “interleave” a little bit to improve rate.  Rare grid rovers, expeditions, and other popular stations could benefit. 

Having a blast on the radio. Thanks to all!

George/KF2T