.... yeah, as it cakes and bakes on, it's a little harder to clean,... I hear you on the metal tempering loss, but so far it's OK, still pretty much the same spring to it,... but the repeated blasting to red glow isn't a good thing long term maybe,.... guess we'll see!
I don't do that often though, only when lazy... I like to hold it upside down and pull the base back and let it snap onto the ashtray surface to knock bits loose during use, and/or just straight draw with flame to roast out stuck bits.... Cleaning, I'll heat it up a little, then dunk it in 91% alcohol and take a q-tip to it while immersed,.. this cleans it well and fast enough.... they are certainly using a high quality alloy!