Did Brian give you any tips? His buttons (at least the ones I've seen) are bubble-free.
we're both using the same materials, same plastic, everything, the only thing the tech from www.smoothon.com could suggest was that there was more moisture in my area, which kinda sucks. Anyway I'm now working with the possiblity of possibly the amount I've been mixing (up until now I've been using very small amounst, but I have a gut feeling that maybe by using more and letting the materials set for a while before mixing perhaps I can cut down the amount of bubbles)

Smoothon has a lot of different colors for pigment, I know they have, red, blue, yellow, green... I'm checking right now if they have white or grey