The 715 remaining that you see in the subject line is for the first 5000 chips for batch 6. SB usually orders the batch once half of the 10000 batch has been sold. So the actual number of chips remaining for sale in batch 6 is around 5715 (less any that have been sold that haven't been accounted for by SB in the subject line), but the batch should be ordered once another 715 are sold.