I'd certainly be up for a conference. I'm also hoping I'll be invited to John Coffer's Jamboree in July after my Memorial Day weekend workshop with him in Dundee. I'm somehow hoping to stretch my trip to Peters Valley for your dag workshop into the Jamboree a week or so later, maybe visiting some friends on the east coast and then photographing my way back home at a leisurely pace.
Here's another thought I've been kicking around related to oysters and such: I'm wondering if somehow taking a whetstone over the glass edge is creating a multitude of little pockets for whiting or small glass chips to collect in which ultimately form nuclei for oysters and comets. I'm going to try chemically cleaning the glass and then just subbing the edge with albumen rather than dulling the edge first with a stone and using whiting to clean it.