I'll give the denatured a try. I am not in a hurry so I will see what it does. It might be nice to have two matching cans so it doesn't look like a Frankenstein.
I have several NOS duckbills, should I even bother with them? I have the Duck Bill eliminator in a few of my twin hoses and a silicone Duckbill new in a bag. I was thinking of putting a Mistral back original. Would using a duckbill eliminator be too much of a faux pas in a Mistral.