Good news. The Hasselblad 80mm front doublet came apart today in the jar of Methylene Chloride it's been in since 7-26-13. I'm going to be using some liquid Canadian balsam in a little bottle I bought from Canada on ebay.Hope it's the right stuff. I didn't like the idea of dissolving the hard sticks in my dusty house. I would have never been able to keep specks out of it as it dissolved.