Simmer down, Roy.
First, I was posting to OP, not you.
Second, you were not the only one in the thread to suggest a proof be printed and used for comparison. Note that I used the word "others", the plural form. I agreed with the proof recommendation by you and Ink Stained Fingers. Inexplicably you appear to have a problem with that.
Third, as to misrepresenting what you said, there was absolutely no intention. Heck, I didn't even mention you by name or indicate anything you posted as incorrect.
And...? I added something to the mix that I felt was tangentially important in relation to OP's original inquiry. It had absolutely nothing to do with you, Roy.
As a seasoned printer of images you probably know that no matter how valid your printer ICC is, or how unchanged your ink and paper are, your monitor can drift in its accuracy. If you do any editing changes to the image before printing, which I assume you do from time to time, then it is optimal the monitor be calibrated appropriately in order to get printer output approaching WYSIWYG, typically a desired outcome I've read. Therefore, since all the usual variables for the printer are hypothetical constants, the only potential variable, ie not constant as per OP's initial post, is the monitor. (What do you know, I did read and understood OP's initial post) Hence, calibrate the monitor regularly to facilitate success and eliminate, or decrease, the need for printer re-calibration.
I have the sense that the OP is quite capable of understanding the principles/suggestions each of us put forth and can take from them what he wants. Don't you?
I hope these words clarify the issue for you. We do not always have to agree, but we actually do in this instance concerning an archival proof.