I know this has been documented many times in several threads, but after my dual P-Mag install, I felt I needed to put a separate plug in for Brad at EMagAir.
Brad has been awesome help, both via email and phone. I have been talking to Brad for several months leading up to my decision to purchase. He was always willing to answer my questions with as much detail as I needed. He even put me in contact with 3 customers that had a similar situation in order to provide better insight into question and possible solution. (VM1000 & PMAG tach output)
I called Brad a few times after hours and he answered or called me right back. I may even be the newest addition to his "Brown Bag Confessions!"
http://www.emagair.com/BBConfessions.htm Ooops!
Many thanks Brad for great customer service.