Bee's pretty manky ...

... with almost half of the rear asbestos block missing, but never any problems with the oft-claimed vaporisation/vapour lock

Shiny new one ...

... although the heat shielding material ...

... is pretty thin. I pondered beefing it up with some left-over from Vee's inner-wing protection, but I'll see how it goes. With almost half of one block missing, and the old rusty surface probably radiating significantly more at the carbs than the shiny new one, it'll probably be OK.

One tab and four holes on Bee's ...

... three tabs and three holes in the new one which should be OK.