It didn't scare me at all, actually. I wasn't even in the same room and was halfway expecting it to happen. I baked the second one for a couple of hours at that lower temp.
So....what I didn't expect was when I finally made enchiladas last night, ( did fried mushrooms and frog legs the night before instead) ...was how much rubber smell came out of that oven when it got back to 350°. BTW, the enchiladas taste fine!
On a side note....my oven light is out. Coincidence?
...so I need a new appliance bulb.
I'm really kinda thinking I might even abandon the whole HF idea at this point. It's a lot of time and effort just to make one last a little longer and prove that even improved they aren't worth it.
I'm thinking I can use the hub parts somewhere else anyway...and they will be fine! (It's the rubber part I know is going to fail no matter what I do.)
(I was going to fill it with insulating foam so it would keep going when the tread went away...)