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This thread is a follow up to the point discussed in another thread. I opened a new thread to avoid polluting the previous thread with a second discussion. The link is http://lavag.org/topic/16669-universal-fgv/?p=103311 and I want to react to a message from JohnMc86: Hi, I get the advantage of working with both DVR and Objects. However I am still very sceptical about the use of the in place structure to read the object directly in the main VI. I see the DVR Based Objects a really safe way to work with class while making sure they are initialized and to avoid data copies. Working with In Place on the main VI theoriticaly gives me the right to remove an initialized object from a reference and replace it with another object from the class or, even worse, a non initialized object. I am really sceptical on the "well coding" of this based on that point and also based on the fact that you are then manipulating an object outside a method. Is it really the best way to go? Would it not be prefearable to write this function in a method (like "Copy Object" where the object in the reference is duplicated and both object and reference are output. Or a "To Object" and "To Reference" Method with some error handling algorithm to make sure the object input of the "To Reference" method has correctly been initiated or is the same instance than the one that has been called from the "To Object" method)? I ma still "new" to the GOO world, so there might be some subtlety I do not see. Cheers