Enjoyed this older thread just for education purposes.

Never know, might get one of those blocks someday.

Hasn't really been any closure, though.

So I'm going to ask...how have you guys repaired this?

I'm thinking maybe lightly press in a plug with a smaller steam hole drilled off center to get it away from the sleeve, or thread the hole and install a homemade "jet" with a similar hole, or something like that.