Here's a complete newbie question (I'm pondering grinding my own mirror and am reading this thread on the hassles of pitch with interest. BTW thanks folks for organizing the ATM sessions at RTMC. I'll be there and hope to see some of you!) What's the melting point of pitch? Is it low enough to melt over very hot water in a double-boiler arrangement? Thanks - Allan Hollander adh@geog.ucsb.edu