Note: I edited my post above to read "Back-stab" instead of "Back-wire".
The Back-stabbed receptacles seem to have connection method similar to the Wago type push-in connectors. Many people don't seem to trust them, except on lightly loaded circuits. These connectors seem to be trying for a foot-hold in the US. Do you think the skepticism is justified, from a design standpoint? The ones I've seen are rated at 20A and for solid or stranded wire.
Bill
