Eureka! I found Grizz's thread!
http://bbs.hitechcreations.com/smf/index.php/topic,280043.0.html
That. What Junky said, this technique can help you out when you need to deal with multiple cons.
One more thing, i use that double convergence becouse people tend to attempt to run away from me. I see its a bit comic to run away from a k-4, but a pony or dora can do it. I use the MGs to ping them from 600 out and make them turn. Then, when they are close, the tater will finish them quickly. I fire both of my guns in a turnfight too, to MGs help me aiming the tater. When you hit with them, lead a little bit more and the tater will hit the target.