Just an update.
I'm on 7 weeks with the same 357. On Sunday, the day I turned Vet here no less, I absolutely fried the thing. I had my Grand and keys in my jacket pocket. I sat down and somehow the keys got on top of the fire button. And it did fire...and fire..and fire. I smelled the burn and felt the heat all about the same time.
I pulled it out of my pocket and took off the drip tip. It was crusty black inside. It worked, but tasted terrible. I gave it a long soak in 99% iso, gently knocked the burnt crust off the top of the atty, soaked it another hour, blew it out, let it dry, primed it up, and vaped away. Works just fine.
As far as atties go, I've never had a better one.