I am a GluBoost user, and I actually picked up some of their pigments. I am curious how most people actually USE the pigments. I have some of the black stickfast, and I also think I found a bottle of black mercury (which I prefer, stickfast and me don't mix!) But there are times when I'd like a different color, say brown (which is one of the colors I have), and I am not sure what the best way to apply the tinting really is.
I tried mixing it into some CA that I put into another very tiny bottle, swirled it around, and then applied. That usually gets me a really nice mix, but, its wasteful as I usually have to add more CA to that bottle than I'm actually going to use, and probably also more pigment.
The other thing I've tried is to apply the CA first (say into a crack), then add the pigment, then add a bit more CA, add pigment. That is more precise, however, it doesn't really seem to blend the pigment in well.
I don't know if there are other techniques. I once thought of using a silicon pad or maybe delrin slab or something as a mixing surface, then using a toothpick or something to transfer a well-mixed CA+pigment to the wood. Perhaps that might work with a thicker CA (say GluBoost blue?) that has more thickeners that slow the drying process, giving me enough time to really fill in said cracks or what have you. Thinner CA (green or orange GluBoost) I think might still harden just because of moisture in the air before the job could be fully completed.