Joe wrote:

  I would add that there are 2 basic types of pins, one is formed from sheet metal, the other is milled from stock.  The Aeroelectric and Steinair tools are for the milled type.

And I would further add that I’d suggest not using the sheet metal barrel type for something flight critical like the EC2.  They are more likely to corrode, and may lose contact pressure if plugged and unplugged a number of times.  Just a suggestion based on what I’ve heard or read – no direct experience with a failure.

Al