With boro, i try to lay silver on until i get a nicotine yellow color. If it is layed on too heavy you can blast it off with an oxidizing flame and then hit it with a neutral flame again real quick to get that even yellow. Once its imploded, let it cool until you dont see any glow when you hold it in a dark place (under your bench). Then turn the piece in the very back of a neutral flame, hot enough to make it start glowing again and sink the heat all the way to the core, but not hot enough to start moving the glass again. Hold it under bench. Repeat this 2-3 times. You can also use gold with it to get some greens and pinks. As far as kiln striking, you can ramp up to 1125° for 30 min as your annealing temp, then proceed with your normal cycle. I use this along with a lower garage temp around 925° while im working with silver striking colors, but with silver implosions, i think flame striking is the way to go along with experimenting with the amount of silver you use, flame chemistry and the number of strikes to get the desired effect.
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