These things seem to be hit and miss, no matter what brand I'm stuck installing and then testing. Any of the residential models will sometimes bend back on first use/test and sometimes snap the plate right off (which is fun when you used all the plates already!), while some it's like they're not even TR. I do like Greg's idea of carrying around a cord cap or tester to break them in before installing them though!
I bought some spec. grade Levitons to install in my parents' house here once I get the circuits mapped out and add GFCI's for the ungrounded circuits. Hopefully they're not hard to use or I will never hear the end of it.
