Worked on properties where ampact connectors were used exclusively. They're great connectors, the C-body is springy, and keeps good pressure, thus good connection, between the conductors and the wedge. Expansion and contraction of the conductor from temperature change doesn't loosen up the connection like it does with smoosh-ons and bolted connectors. I've never seen the new guns either, just the Ampact and Burndy guns using shells.