The reason I ask is because I am aware that many of the colors strike in the kiln. I want to minimize the too light and too dark problem if I'm making sets of all the same beads. I especially like the rubies and the amber purples. I would like to use those as frit over base colors. I'm not sure which base colors yet. There are a few colors in soft glass that I have to batch anneal to get consistent color, like the iris ambers and copper rubies.
I assume that because boro doesn't shock and shatter as much as soft glass does, will that mean they can be safely cooled to room temp, and then annealed later? I use the "annealing bubbles" from Artco, and these hold the heat much longer than vermiculite or the fiber blankets. I'm not sure what temp I will anneal at, and that will depend on which frits I use.
How does star white hold up to batch annealing? I thought I read somewhere that the color had some problems. (was "boiling" it??) The beads I plan to make will be around 13mm and less. Pretty small.