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I agree 100%. There are times when type checking is very useful. I'm not saying type checking is useless or even that the compiler optimization is a bad idea. Obviously it is an improvement. I just think language is much more readable if the question of type compatibility is answered by an "Is Type Of" or "Is Child Of" node rather than requiring us to resort to confusing semantics with the To More Specific node. Roughly speaking, the text equivalent of the sample Stephen posted is: obj response; response = ToMoreSpecific(Parent,Child); if isNotError(response) { response = ToMoreSpecific(Parent,Child); response.setValue(54); }; [/CODE] Then there's also this little trick Stephen posted a while back for run-time type checking: I appreciate the effort Stephen goes to to keep us informed and I hope my comments aren't perceived as an attack on him. The fact that he has to explain how to accomplish certain tasks efficiently should be a clue the language is not providing something developers need.