You're exactly right on how the packets are sent out - and the discreetness of them. <br><br>The amount of time Ping Plotter waits between sending out packets is specified in the Advanced Options screen under the "Packet Options" tab and using the "Time interval between hop traces" setting.<br><br>Thanks for the gush - and the referrals. I don't market Ping Plotter much at all - almost all of the sales are from referrals.<br><br>