i have a few questions. first off, regarding the proper usage of "check"...there is a check in the glass, the glass checked...?
i use a lot of copper wire in my fused pieces, some completely sealed in the glass, and some of it protruding as loops. (i use 18 guage for the loops, hammered flat). i have been having problems with these "checks" appearing in the glass next to the loops. it doesn't always happen though, just sometimes.
i don't sell these pieces, but am still curious to know if they will eventually break? or does the hairline crack just remain? i have conducted a few experiments with such checked glass, by placing it in a zip lock baggie in the freezer, to see if the cold will cause it to crack even more, and so far there has not been any visible difference in any of the pieces, not even after returning to room temp. is there any rhyme or reason as to when glass will break or not?
now a kiln/insurance question...firstly thanks for all the kiln buying suggestions from many of you...i finally placed my order today for the SKUTT CLAMSHELL!!

thanks so much for the great info you all share, and your great humor too!
michelle