No. Back in 1974, when I was a first year apprentice, I almost used the "stabs" in the back of the receptacle when my journeyman had a bit of a fit....
I first ducted outside maybe 10 years ago. Back then my workshop was in the basement and I didn't care about sending the cold basement air outside. ...
I've thought about installing a beefier spring but then isn't that rolling the dice? Not so much as to how effective it will be in applying tension,...