<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Had a weird observation while annealing my windows, I have one window that I drilled a 1/8' deep hole for a temperature probe so I can monitor the rise of the acrylic. After the annealing, the one window with the probe, it's surface was badly melted. The rest of the windows were perfectly fine. The only difference was that the window with the probe has gone through multiple annealing cycles. It was also sitting on another piece of thick acrylic, but I don't think that would have anything to do with it's surface being melted.</DIV><DIV> </DIV><DIV>Brian Cox</DIV></DIV>