I think foles is referring to that all NASA burners once used a couple of times, the paint burns off and clogs the outlets. Then you need to stop and clean the shit out the way before your next brew. You think when they make they they would come up with something better than the paint they use.
It seems true enough I have tried all of the above, not available, including the Pooraka Hong Kong Shop.
Global imports and Beer belly used to sell them also but not anymore.
I think if someone has seen them recently they would post here.g b