The P&S TR outlets I used in my daughters old preschool were all commercial grade, but they seemed to be the easiest to insert a cordcap into of anything I've come across. I tried a couple Levitons before from the Depot. (decora and resi duplex) and had a helluva time getting anything into them.. I finally grabbed a NIB Hubbell cordcap and slammed it through. Half the shutters stayed open..

The yoke on anything resi is pretty flimsy IMO.. I've used a couple Cooper TR GFIs (Bought a 3 pack) one didn't want to reset from the start, one was hard to get anything in the lower recept and the other one worked fine... I've yet to try a Hubbell/Bryant TR..