I said:
I think it's probably the after-shutdown heat soak however so I don't suppose the blast tube or shroud would help. But I do now open the oil door after shutdown as a matter of course.
I should add that my heat dots did go dark a while back. I replaced them with 190-210 strips and it has gotten up to 200. This is with the traditional blast tube configuration.I would guess the 3D-printed shroud or corrugated-surround would provide more even cooling to the unit, so why not?
I think it's probably the after-shutdown heat soak however so I don't suppose the blast tube or shroud would help. But I do now open the oil door after shutdown as a matter of course.